| slovo | definícia |
formula
(encz) | formula,formule n: Zdeněk Brož |
formula
(encz) | formula,vzorec n: Zdeněk Brož |
Formula
(gcide) | Formula \For"mu*la\, n.; pl. E. Formulas, L. Formul[ae].
[L., dim. of forma form, model. SeeForm, n.]
1. A prescribed or set form; an established rule; a fixed or
conventional method in which anything is to be done,
arranged, or said.
[1913 Webster]
2. (Eccl.) A written confession of faith; a formal statement
of foctrines.
[1913 Webster]
3. (Math.) A rule or principle expressed in algebraic
language; as, the binominal formula.
[1913 Webster]
4. (Med.) A prescription or recipe for the preparation of a
medicinal compound.
[1913 Webster]
5. (Chem.) A symbolic expression (by means of letters,
figures, etc.) of the constituents or constitution of a
compound.
[1913 Webster]
Note: Chemical formul[ae] consist of the abbreviations of the
names of the elements, with a small figure at the lower
right hand, to denote the number of atoms of each
element contained.
[1913 Webster]
Empirical formula (Chem.), an expression which gives the
simple proportion of the constituents; as, the empirical
formula of acetic acid is C2H4O2.
Graphic formula, Rational formula (Chem.), an expression
of the constitution, and in a limited sense of the
structure, of a compound, by the grouping of its atoms or
radicals; as, a rational formula of acetic acid is
CH3.(C:O).OH; -- called also structural formula,
constitutional formula, etc. See also the formula of
Benzene nucleus, under Benzene.
Molecular formula (Chem.), a formula indicating the
supposed molecular constitution of a compound.
[1913 Webster] |
formula
(wn) | formula
n 1: a group of symbols that make a mathematical statement [syn:
formula, expression]
2: directions for making something [syn: recipe, formula]
3: a conventionalized statement expressing some fundamental
principle
4: a representation of a substance using symbols for its
constituent elements [syn: formula, chemical formula]
5: something regarded as a normative example; "the convention of
not naming the main character"; "violence is the rule not the
exception"; "his formula for impressing visitors" [syn:
convention, normal, pattern, rule, formula]
6: a liquid food for infants
7: (mathematics) a standard procedure for solving a class of
mathematical problems; "he determined the upper bound with
Descartes' rule of signs"; "he gave us a general formula for
attacking polynomials" [syn: rule, formula] |
formula
(foldoc) | formula
1. In logic, a sequence of symbols representing terms,
predicates, connectives and quantifiers which is either
true or false.
2. FORTH Music Language. An extension of
FORTH with concurrent note-playing processes. Runs on
Macintosh and Atari ST with MIDI output.
["Formula: A Programming Language for Expressive Computer
Music", D.P. Anderson et al Computer 24(7):12 (Jul 1991)].
3. Preprocessor language for the Acorn Archimedes, allowing
inline high-level statements to be entered in an assembly
program. Written in nawk.
|
| | podobné slovo | definícia |
formular
(msasasci) | formular
- form |
chemical formula
(encz) | chemical formula, n: |
empirical formula
(encz) | empirical formula, n: |
formula grant
(encz) | formula grant, |
formula-based grant
(encz) | formula-based grant, |
formulae
(encz) | formulae,formulace n: Zdeněk Brožformulae,formule n: pl. Zdeněk Brožformulae,recept n: pl. Zdeněk Brožformulae,vzorec n: pl. Zdeněk Brož |
formulaic
(encz) | formulaic,podobný adj: Zdeněk Brož |
formularise
(encz) | formularise, v: |
formularize
(encz) | formularize,formulovat v: Zdeněk Brožformularize,vyjádřit formulí Zdeněk Brož |
formulary
(encz) | formulary,lékopis n: Zdeněk Brožformulary,sbírka předpisů Zdeněk Brožformulary,vzorec n: Zdeněk Brož |
formulas
(encz) | formulas,formule pl. Zdeněk Brož |
formulate
(encz) | formulate,formulovat v: Zdeněk Brožformulate,ztvárnit v: K. Weigelová |
formulated
(encz) | formulated,formulovaný adj: Zdeněk Brož |
formulating
(encz) | formulating,formulování [eko.] Zpracovávání nebo zhotovování výrobku
pomocí míchání nebo spojování materiálů v procesu, v němž nevznikají
nové chemické látky. RNDr. Pavel Piskačformulating,formulující adj: Zdeněk Brož |
formulation
(encz) | formulation,formulace n: Zdeněk Brož |
formulator
(encz) | formulator,formulátor n: Zdeněk Brož |
molecular formula
(encz) | molecular formula, n: |
reformulate
(encz) | reformulate,přeformulovat v: Zdeněk Brožreformulate,reformulovat v: Zdeněk Brož |
reformulated
(encz) | reformulated,přeformuloval v: Zdeněk Brožreformulated,přeformulovaný adj: Zdeněk Brožreformulated,reformuloval v: Zdeněk Brož |
reformulating
(encz) | reformulating, |
reformulation
(encz) | reformulation,přeformulování n: Zdeněk Brož |
structural formula
(encz) | structural formula, n: |
unformulated
(encz) | unformulated, |
value formulation
(encz) | value formulation,vyjádření hodnoty [eko.] RNDr. Pavel Piskač |
další formulace
(czen) | další formulace,restatement Zdeněk Brož |
formulace
(czen) | formulace,formationspl. Zdeněk Brožformulace,formulaen: Zdeněk Brožformulace,formulationn: Zdeněk Brožformulace,verbalizationn: Zdeněk Brožformulace,wordingn: PetrV |
constitutional formula
(gcide) | Formula \For"mu*la\, n.; pl. E. Formulas, L. Formul[ae].
[L., dim. of forma form, model. SeeForm, n.]
1. A prescribed or set form; an established rule; a fixed or
conventional method in which anything is to be done,
arranged, or said.
[1913 Webster]
2. (Eccl.) A written confession of faith; a formal statement
of foctrines.
[1913 Webster]
3. (Math.) A rule or principle expressed in algebraic
language; as, the binominal formula.
[1913 Webster]
4. (Med.) A prescription or recipe for the preparation of a
medicinal compound.
[1913 Webster]
5. (Chem.) A symbolic expression (by means of letters,
figures, etc.) of the constituents or constitution of a
compound.
[1913 Webster]
Note: Chemical formul[ae] consist of the abbreviations of the
names of the elements, with a small figure at the lower
right hand, to denote the number of atoms of each
element contained.
[1913 Webster]
Empirical formula (Chem.), an expression which gives the
simple proportion of the constituents; as, the empirical
formula of acetic acid is C2H4O2.
Graphic formula, Rational formula (Chem.), an expression
of the constitution, and in a limited sense of the
structure, of a compound, by the grouping of its atoms or
radicals; as, a rational formula of acetic acid is
CH3.(C:O).OH; -- called also structural formula,
constitutional formula, etc. See also the formula of
Benzene nucleus, under Benzene.
Molecular formula (Chem.), a formula indicating the
supposed molecular constitution of a compound.
[1913 Webster] |
Dental formula
(gcide) | dental \den"tal\ (d[e^]n"tal), a. [L. dens, dentis, tooth: cf.
F. dental. See Tooth.]
1. Of or pertaining to the teeth or to dentistry; as, dental
surgery.
[1913 Webster]
2. (Phon.) Formed by the aid of the teeth; -- said of certain
articulations and the letters representing them; as, d and
t are dental letters.
[1913 Webster]
Dental formula (Zool.), a brief notation used by zoologists
to denote the number and kind of teeth of a mammal.
Dental surgeon, a dentist.
[1913 Webster] |
Empirical formula
(gcide) | Formula \For"mu*la\, n.; pl. E. Formulas, L. Formul[ae].
[L., dim. of forma form, model. SeeForm, n.]
1. A prescribed or set form; an established rule; a fixed or
conventional method in which anything is to be done,
arranged, or said.
[1913 Webster]
2. (Eccl.) A written confession of faith; a formal statement
of foctrines.
[1913 Webster]
3. (Math.) A rule or principle expressed in algebraic
language; as, the binominal formula.
[1913 Webster]
4. (Med.) A prescription or recipe for the preparation of a
medicinal compound.
[1913 Webster]
5. (Chem.) A symbolic expression (by means of letters,
figures, etc.) of the constituents or constitution of a
compound.
[1913 Webster]
Note: Chemical formul[ae] consist of the abbreviations of the
names of the elements, with a small figure at the lower
right hand, to denote the number of atoms of each
element contained.
[1913 Webster]
Empirical formula (Chem.), an expression which gives the
simple proportion of the constituents; as, the empirical
formula of acetic acid is C2H4O2.
Graphic formula, Rational formula (Chem.), an expression
of the constitution, and in a limited sense of the
structure, of a compound, by the grouping of its atoms or
radicals; as, a rational formula of acetic acid is
CH3.(C:O).OH; -- called also structural formula,
constitutional formula, etc. See also the formula of
Benzene nucleus, under Benzene.
Molecular formula (Chem.), a formula indicating the
supposed molecular constitution of a compound.
[1913 Webster]Empiric \Em*pir"ic\, Empirical \Em*pir"ic*al\, a.
1. Pertaining to, or founded upon, experiment or experience;
depending upon the observation of phenomena; versed in
experiments.
[1913 Webster]
In philosophical language, the term empirical means
simply what belongs to or is the product of
experience or observation. --Sir W.
Hamilton.
[1913 Webster]
The village carpenter . . . lays out his work by
empirical rules learnt in his apprenticeship. --H.
Spencer.
[1913 Webster]
2. Depending upon experience or observation alone, without
due regard to science and theory; -- said especially of
medical practice, remedies, etc.; wanting in science and
deep insight; as, empiric skill, remedies.
[1913 Webster]
Empirical formula. (Chem.) See under Formula.
Syn: See Transcendental.
[1913 Webster] |
Formula
(gcide) | Formula \For"mu*la\, n.; pl. E. Formulas, L. Formul[ae].
[L., dim. of forma form, model. SeeForm, n.]
1. A prescribed or set form; an established rule; a fixed or
conventional method in which anything is to be done,
arranged, or said.
[1913 Webster]
2. (Eccl.) A written confession of faith; a formal statement
of foctrines.
[1913 Webster]
3. (Math.) A rule or principle expressed in algebraic
language; as, the binominal formula.
[1913 Webster]
4. (Med.) A prescription or recipe for the preparation of a
medicinal compound.
[1913 Webster]
5. (Chem.) A symbolic expression (by means of letters,
figures, etc.) of the constituents or constitution of a
compound.
[1913 Webster]
Note: Chemical formul[ae] consist of the abbreviations of the
names of the elements, with a small figure at the lower
right hand, to denote the number of atoms of each
element contained.
[1913 Webster]
Empirical formula (Chem.), an expression which gives the
simple proportion of the constituents; as, the empirical
formula of acetic acid is C2H4O2.
Graphic formula, Rational formula (Chem.), an expression
of the constitution, and in a limited sense of the
structure, of a compound, by the grouping of its atoms or
radicals; as, a rational formula of acetic acid is
CH3.(C:O).OH; -- called also structural formula,
constitutional formula, etc. See also the formula of
Benzene nucleus, under Benzene.
Molecular formula (Chem.), a formula indicating the
supposed molecular constitution of a compound.
[1913 Webster] |
Formulae
(gcide) | Formula \For"mu*la\, n.; pl. E. Formulas, L. Formul[ae].
[L., dim. of forma form, model. SeeForm, n.]
1. A prescribed or set form; an established rule; a fixed or
conventional method in which anything is to be done,
arranged, or said.
[1913 Webster]
2. (Eccl.) A written confession of faith; a formal statement
of foctrines.
[1913 Webster]
3. (Math.) A rule or principle expressed in algebraic
language; as, the binominal formula.
[1913 Webster]
4. (Med.) A prescription or recipe for the preparation of a
medicinal compound.
[1913 Webster]
5. (Chem.) A symbolic expression (by means of letters,
figures, etc.) of the constituents or constitution of a
compound.
[1913 Webster]
Note: Chemical formul[ae] consist of the abbreviations of the
names of the elements, with a small figure at the lower
right hand, to denote the number of atoms of each
element contained.
[1913 Webster]
Empirical formula (Chem.), an expression which gives the
simple proportion of the constituents; as, the empirical
formula of acetic acid is C2H4O2.
Graphic formula, Rational formula (Chem.), an expression
of the constitution, and in a limited sense of the
structure, of a compound, by the grouping of its atoms or
radicals; as, a rational formula of acetic acid is
CH3.(C:O).OH; -- called also structural formula,
constitutional formula, etc. See also the formula of
Benzene nucleus, under Benzene.
Molecular formula (Chem.), a formula indicating the
supposed molecular constitution of a compound.
[1913 Webster] |
Formularies
(gcide) | Formulary \For"mu*la*ry\, n.; pl. Formularies. [Cf. F.
formulaire.]
1. A book containing stated and prescribed forms, as of
oaths, declarations, prayers, medical formula[ae], etc.; a
book of precedents.
[1913 Webster]
2. Prescribed form or model; formula.
[1913 Webster] |
Formularistic
(gcide) | Formularistic \For`mu*la*ris"tic\, a.
Pertaining to, or exhibiting, formularization. --Emerson.
[1913 Webster] |
Formularization
(gcide) | Formularization \For`mu*lar*i*za"tion\, n.
The act of formularizing; a formularized or formulated
statement or exhibition. --C. Kingsley.
[1913 Webster] |
Formularize
(gcide) | Formularize \For"mu*lar*ize\, v. t.
To reduce to a forula; to formulate.
[1913 Webster] |
Formulary
(gcide) | Formulary \For"mu*la*ry\, a. [Cf. F. formulaire. See Formula.]
Stated; prescribed; ritual.
[1913 Webster]Formulary \For"mu*la*ry\, n.; pl. Formularies. [Cf. F.
formulaire.]
1. A book containing stated and prescribed forms, as of
oaths, declarations, prayers, medical formula[ae], etc.; a
book of precedents.
[1913 Webster]
2. Prescribed form or model; formula.
[1913 Webster] |
Formulas
(gcide) | Formula \For"mu*la\, n.; pl. E. Formulas, L. Formul[ae].
[L., dim. of forma form, model. SeeForm, n.]
1. A prescribed or set form; an established rule; a fixed or
conventional method in which anything is to be done,
arranged, or said.
[1913 Webster]
2. (Eccl.) A written confession of faith; a formal statement
of foctrines.
[1913 Webster]
3. (Math.) A rule or principle expressed in algebraic
language; as, the binominal formula.
[1913 Webster]
4. (Med.) A prescription or recipe for the preparation of a
medicinal compound.
[1913 Webster]
5. (Chem.) A symbolic expression (by means of letters,
figures, etc.) of the constituents or constitution of a
compound.
[1913 Webster]
Note: Chemical formul[ae] consist of the abbreviations of the
names of the elements, with a small figure at the lower
right hand, to denote the number of atoms of each
element contained.
[1913 Webster]
Empirical formula (Chem.), an expression which gives the
simple proportion of the constituents; as, the empirical
formula of acetic acid is C2H4O2.
Graphic formula, Rational formula (Chem.), an expression
of the constitution, and in a limited sense of the
structure, of a compound, by the grouping of its atoms or
radicals; as, a rational formula of acetic acid is
CH3.(C:O).OH; -- called also structural formula,
constitutional formula, etc. See also the formula of
Benzene nucleus, under Benzene.
Molecular formula (Chem.), a formula indicating the
supposed molecular constitution of a compound.
[1913 Webster] |
Formulate
(gcide) | Formulate \For"mu*late\, v. t. [imp. & p. p. Formulated; p.
pr. & vb. n. Formulating.]
To reduce to, or express in, a formula; to put in a clear and
definite form of statement or expression. --G. P. Marsh.
[1913 Webster] |
Formulated
(gcide) | Formulate \For"mu*late\, v. t. [imp. & p. p. Formulated; p.
pr. & vb. n. Formulating.]
To reduce to, or express in, a formula; to put in a clear and
definite form of statement or expression. --G. P. Marsh.
[1913 Webster]formulated \formulated\ adj.
reduced to a systematic form; reduced to a formula.
[WordNet 1.5 +PJC]developed \developed\ adj.
1. being changed over time so as to be e.g. stronger or more
complete or more useful; as, the developed qualities of
the Hellenic outlook; the state's well-developed
industries. Oppositre of undeveloped. [Narrower terms:
formulated; mature]
[WordNet 1.5]
2. made more useful and profitable as by building or laying
out roads; -- of real estate. new houses are springing up
on the developed tract of land near the river
Syn: improved.
[WordNet 1.5] |
formulated
(gcide) | Formulate \For"mu*late\, v. t. [imp. & p. p. Formulated; p.
pr. & vb. n. Formulating.]
To reduce to, or express in, a formula; to put in a clear and
definite form of statement or expression. --G. P. Marsh.
[1913 Webster]formulated \formulated\ adj.
reduced to a systematic form; reduced to a formula.
[WordNet 1.5 +PJC]developed \developed\ adj.
1. being changed over time so as to be e.g. stronger or more
complete or more useful; as, the developed qualities of
the Hellenic outlook; the state's well-developed
industries. Oppositre of undeveloped. [Narrower terms:
formulated; mature]
[WordNet 1.5]
2. made more useful and profitable as by building or laying
out roads; -- of real estate. new houses are springing up
on the developed tract of land near the river
Syn: improved.
[WordNet 1.5] |
Formulating
(gcide) | Formulate \For"mu*late\, v. t. [imp. & p. p. Formulated; p.
pr. & vb. n. Formulating.]
To reduce to, or express in, a formula; to put in a clear and
definite form of statement or expression. --G. P. Marsh.
[1913 Webster] |
Formulation
(gcide) | Formulation \For`mu*la"tion\, n.
The act, process, or result of formulating or reducing to a
formula.
[1913 Webster] |
Graphic formula
(gcide) | Formula \For"mu*la\, n.; pl. E. Formulas, L. Formul[ae].
[L., dim. of forma form, model. SeeForm, n.]
1. A prescribed or set form; an established rule; a fixed or
conventional method in which anything is to be done,
arranged, or said.
[1913 Webster]
2. (Eccl.) A written confession of faith; a formal statement
of foctrines.
[1913 Webster]
3. (Math.) A rule or principle expressed in algebraic
language; as, the binominal formula.
[1913 Webster]
4. (Med.) A prescription or recipe for the preparation of a
medicinal compound.
[1913 Webster]
5. (Chem.) A symbolic expression (by means of letters,
figures, etc.) of the constituents or constitution of a
compound.
[1913 Webster]
Note: Chemical formul[ae] consist of the abbreviations of the
names of the elements, with a small figure at the lower
right hand, to denote the number of atoms of each
element contained.
[1913 Webster]
Empirical formula (Chem.), an expression which gives the
simple proportion of the constituents; as, the empirical
formula of acetic acid is C2H4O2.
Graphic formula, Rational formula (Chem.), an expression
of the constitution, and in a limited sense of the
structure, of a compound, by the grouping of its atoms or
radicals; as, a rational formula of acetic acid is
CH3.(C:O).OH; -- called also structural formula,
constitutional formula, etc. See also the formula of
Benzene nucleus, under Benzene.
Molecular formula (Chem.), a formula indicating the
supposed molecular constitution of a compound.
[1913 Webster]Graphic \Graph"ic\ (gr[a^]f"[i^]k), Graphical \Graph"ic*al\
(gr[a^]f"[i^]*kal), a. [L. graphicus, Gr. grafiko`s, fr.
gra`fein to write; cf. F. graphique. See Graft.]
1. Of or pertaining to the arts of painting and drawing; of
or pertaining to graphics; as, graphic art work. [WordNet
sense 2]
[1913 Webster + WordNet 1.5]
2. Of or pertaining to the art of writing.
[1913 Webster]
3. Written or engraved; formed of letters or lines.
[1913 Webster]
The finger of God hath left an inscription upon all
his works, not graphical, or composed of letters.
--Sir T.
Browne.
[1913 Webster]
4. Having the faculty of clear, detailed, and impressive
description; as, a graphic writer.
[1913 Webster]
5. Well delineated; clearly and vividly described;
characterized by, clear, detailed, and impressive
description; vivid; evoking lifelike images within the
mind; as graphic details of the President's sexual
misbehavior; a graphic description of the accident;
graphic images of violence. [WordNet sense 5]
Syn: lifelike, pictorial, vivid.
[1913 Webster + WordNet 1.5]
6. Hence: describing nudity or sexual activity in explicit
detail; as, a novel with graphic sex scenes.
[WordNet 1.5]
7. relating to or presented by a graph[2]; as, a graphic
presentation of the data. [WordNet sense 3]
Syn: graphical.
[WordNet 1.5]
Graphic algebra, a branch of algebra in which, the
properties of equations are treated by the use of curves
and straight lines.
Graphic arts, a name given to those fine arts which pertain
to the representation on a fiat surface of natural
objects; as distinguished from music, etc., and also from
sculpture.
Graphic formula. (Chem.) See under Formula.
Graphic granite. See under Granite.
Graphic method, the method of scientific analysis or
investigation, in which the relations or laws involved in
tabular numbers are represented to the eye by means of
curves or other figures; as the daily changes of weather
by means of curves, the abscissas of which represent the
hours of the day, and the ordinates the corresponding
degrees of temperature.
Graphical statics (Math.), a branch of statics, in which
the magnitude, direction, and position of forces are
represented by straight lines
Graphic tellurium. See Sylvanite.
[1913 Webster] |
Molecular formula
(gcide) | Formula \For"mu*la\, n.; pl. E. Formulas, L. Formul[ae].
[L., dim. of forma form, model. SeeForm, n.]
1. A prescribed or set form; an established rule; a fixed or
conventional method in which anything is to be done,
arranged, or said.
[1913 Webster]
2. (Eccl.) A written confession of faith; a formal statement
of foctrines.
[1913 Webster]
3. (Math.) A rule or principle expressed in algebraic
language; as, the binominal formula.
[1913 Webster]
4. (Med.) A prescription or recipe for the preparation of a
medicinal compound.
[1913 Webster]
5. (Chem.) A symbolic expression (by means of letters,
figures, etc.) of the constituents or constitution of a
compound.
[1913 Webster]
Note: Chemical formul[ae] consist of the abbreviations of the
names of the elements, with a small figure at the lower
right hand, to denote the number of atoms of each
element contained.
[1913 Webster]
Empirical formula (Chem.), an expression which gives the
simple proportion of the constituents; as, the empirical
formula of acetic acid is C2H4O2.
Graphic formula, Rational formula (Chem.), an expression
of the constitution, and in a limited sense of the
structure, of a compound, by the grouping of its atoms or
radicals; as, a rational formula of acetic acid is
CH3.(C:O).OH; -- called also structural formula,
constitutional formula, etc. See also the formula of
Benzene nucleus, under Benzene.
Molecular formula (Chem.), a formula indicating the
supposed molecular constitution of a compound.
[1913 Webster]molecular formula \mo*lec"u*lar form"u*la\, n. (Chem.)
An expression representing the composition of elements in a
chemical substance, commonly consisting of a series of
letters and numbers comprising the atomic symbols of each
element present in a compound followed by the number of atoms
of that element present in one molecule of the substance.
Thus the molecular formula for common alcohol (ethyl alcohol)
is C2H6O, meaning that each molecule contains two carbon
atoms, six hydrogen atoms, and one oxygen atom. The molecular
formula may be written to provide some indication of the
actual structure of the molecule, in which case structural
units may be written separately. Thus, ethyl alcohol can also
be written as CH3.CH2.OH or CH3-CH2-OH, in which the
period or dash between functional groups indicates a single
bond between the principle atoms of each group. This formula
shows that in ethyl alcohol, the carbon of a methyl group
(CH3-) is attached to the carbon of a methylene group
(-CH2-), which is attached to the oxygen of a hydroxyl
group (-OH). A structural formula is a graphical
depiction of the relative positions of atoms in a molecule,
and may be very complicated.
[PJC] |
molecular formula
(gcide) | Formula \For"mu*la\, n.; pl. E. Formulas, L. Formul[ae].
[L., dim. of forma form, model. SeeForm, n.]
1. A prescribed or set form; an established rule; a fixed or
conventional method in which anything is to be done,
arranged, or said.
[1913 Webster]
2. (Eccl.) A written confession of faith; a formal statement
of foctrines.
[1913 Webster]
3. (Math.) A rule or principle expressed in algebraic
language; as, the binominal formula.
[1913 Webster]
4. (Med.) A prescription or recipe for the preparation of a
medicinal compound.
[1913 Webster]
5. (Chem.) A symbolic expression (by means of letters,
figures, etc.) of the constituents or constitution of a
compound.
[1913 Webster]
Note: Chemical formul[ae] consist of the abbreviations of the
names of the elements, with a small figure at the lower
right hand, to denote the number of atoms of each
element contained.
[1913 Webster]
Empirical formula (Chem.), an expression which gives the
simple proportion of the constituents; as, the empirical
formula of acetic acid is C2H4O2.
Graphic formula, Rational formula (Chem.), an expression
of the constitution, and in a limited sense of the
structure, of a compound, by the grouping of its atoms or
radicals; as, a rational formula of acetic acid is
CH3.(C:O).OH; -- called also structural formula,
constitutional formula, etc. See also the formula of
Benzene nucleus, under Benzene.
Molecular formula (Chem.), a formula indicating the
supposed molecular constitution of a compound.
[1913 Webster]molecular formula \mo*lec"u*lar form"u*la\, n. (Chem.)
An expression representing the composition of elements in a
chemical substance, commonly consisting of a series of
letters and numbers comprising the atomic symbols of each
element present in a compound followed by the number of atoms
of that element present in one molecule of the substance.
Thus the molecular formula for common alcohol (ethyl alcohol)
is C2H6O, meaning that each molecule contains two carbon
atoms, six hydrogen atoms, and one oxygen atom. The molecular
formula may be written to provide some indication of the
actual structure of the molecule, in which case structural
units may be written separately. Thus, ethyl alcohol can also
be written as CH3.CH2.OH or CH3-CH2-OH, in which the
period or dash between functional groups indicates a single
bond between the principle atoms of each group. This formula
shows that in ethyl alcohol, the carbon of a methyl group
(CH3-) is attached to the carbon of a methylene group
(-CH2-), which is attached to the oxygen of a hydroxyl
group (-OH). A structural formula is a graphical
depiction of the relative positions of atoms in a molecule,
and may be very complicated.
[PJC] |
Rational formula
(gcide) | Formula \For"mu*la\, n.; pl. E. Formulas, L. Formul[ae].
[L., dim. of forma form, model. SeeForm, n.]
1. A prescribed or set form; an established rule; a fixed or
conventional method in which anything is to be done,
arranged, or said.
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2. (Eccl.) A written confession of faith; a formal statement
of foctrines.
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3. (Math.) A rule or principle expressed in algebraic
language; as, the binominal formula.
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4. (Med.) A prescription or recipe for the preparation of a
medicinal compound.
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5. (Chem.) A symbolic expression (by means of letters,
figures, etc.) of the constituents or constitution of a
compound.
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Note: Chemical formul[ae] consist of the abbreviations of the
names of the elements, with a small figure at the lower
right hand, to denote the number of atoms of each
element contained.
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Empirical formula (Chem.), an expression which gives the
simple proportion of the constituents; as, the empirical
formula of acetic acid is C2H4O2.
Graphic formula, Rational formula (Chem.), an expression
of the constitution, and in a limited sense of the
structure, of a compound, by the grouping of its atoms or
radicals; as, a rational formula of acetic acid is
CH3.(C:O).OH; -- called also structural formula,
constitutional formula, etc. See also the formula of
Benzene nucleus, under Benzene.
Molecular formula (Chem.), a formula indicating the
supposed molecular constitution of a compound.
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Ring formula
(gcide) | Ring \Ring\, n. [AS. hring, hrinc; akin to Fries. hring, D. & G.
ring, OHG. ring, hring, Icel. hringr, DAn. & SW. ring; cf.
Russ. krug'. Cf. Harangue, Rank a row,Rink.]
A circle, or a circular line, or anything in the form of a
circular line or hoop.
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2. Specifically, a circular ornament of gold or other
precious material worn on the finger, or attached to the
ear, the nose, or some other part of the person; as, a
wedding ring.
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Upon his thumb he had of gold a ring. --Chaucer.
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The dearest ring in Venice will I give you. --Shak.
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3. A circular area in which races are or run or other sports
are performed; an arena.
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Place me, O, place me in the dusty ring,
Where youthful charioteers contend for glory. --E.
Smith.
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4. An inclosed space in which pugilists fight; hence,
figuratively, prize fighting. "The road was an
institution, the ring was an institution." --Thackeray.
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5. A circular group of persons.
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And hears the Muses in a ring
Aye round about Jove's alter sing. --Milton.
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6. (Geom.)
(a) The plane figure included between the circumferences
of two concentric circles.
(b) The solid generated by the revolution of a circle, or
other figure, about an exterior straight line (as an
axis) lying in the same plane as the circle or other
figure.
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7. (Astron. & Navigation) An instrument, formerly used for
taking the sun's altitude, consisting of a brass ring
suspended by a swivel, with a hole at one side through
which a solar ray entering indicated the altitude on the
graduated inner surface opposite.
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8. (Bot.) An elastic band partly or wholly encircling the
spore cases of ferns. See Illust. of Sporangium.
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9. A clique; an exclusive combination of persons for a
selfish purpose, as to control the market, distribute
offices, obtain contracts, etc.
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The ruling ring at Constantinople. --E. A.
Freeman.
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Ring armor, armor composed of rings of metal. See {Ring
mail}, below, and Chain mail, under Chain.
Ring blackbird (Zool.), the ring ousel.
Ring canal (Zool.), the circular water tube which surrounds
the esophagus of echinoderms.
Ring dotterel, or Ringed dotterel. (Zool.) See
Dotterel, and Illust. of Pressiroster.
Ring dropper, a sharper who pretends to have found a ring
(dropped by himself), and tries to induce another to buy
it as valuable, it being worthless.
Ring fence. See under Fence.
Ring finger, the third finger of the left hand, or the next
the little finger, on which the ring is placed in
marriage.
Ring formula (Chem.), a graphic formula in the shape of a
closed ring, as in the case of benzene, pyridine, etc. See
Illust. under Benzene.
Ring mail, a kind of mail made of small steel rings sewed
upon a garment of leather or of cloth.
Ring micrometer. (Astron.) See Circular micrometer, under
Micrometer.
Saturn's rings. See Saturn.
Ring ousel. (Zool.) See Ousel.
Ring parrot (Zool.), any one of several species of Old
World parrakeets having a red ring around the neck,
especially Palaeornis torquatus, common in India, and
Palaeornis Alexandri of Java.
Ring plover. (Zool.)
(a) The ringed dotterel.
(b) Any one of several small American plovers having a
dark ring around the neck, as the semipalmated plover
(Aegialitis semipalmata).
Ring snake (Zool.), a small harmless American snake
(Diadophis punctatus) having a white ring around the
neck. The back is ash-colored, or sage green, the belly of
an orange red.
Ring stopper. (Naut.) See under Stopper.
Ring thrush (Zool.), the ring ousel.
The prize ring, the ring in which prize fighters contend;
prize fighters, collectively.
The ring.
(a) The body of sporting men who bet on horse races.
[Eng.]
(b) The prize ring.
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structural formula
(gcide) | Formula \For"mu*la\, n.; pl. E. Formulas, L. Formul[ae].
[L., dim. of forma form, model. SeeForm, n.]
1. A prescribed or set form; an established rule; a fixed or
conventional method in which anything is to be done,
arranged, or said.
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2. (Eccl.) A written confession of faith; a formal statement
of foctrines.
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3. (Math.) A rule or principle expressed in algebraic
language; as, the binominal formula.
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4. (Med.) A prescription or recipe for the preparation of a
medicinal compound.
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5. (Chem.) A symbolic expression (by means of letters,
figures, etc.) of the constituents or constitution of a
compound.
[1913 Webster]
Note: Chemical formul[ae] consist of the abbreviations of the
names of the elements, with a small figure at the lower
right hand, to denote the number of atoms of each
element contained.
[1913 Webster]
Empirical formula (Chem.), an expression which gives the
simple proportion of the constituents; as, the empirical
formula of acetic acid is C2H4O2.
Graphic formula, Rational formula (Chem.), an expression
of the constitution, and in a limited sense of the
structure, of a compound, by the grouping of its atoms or
radicals; as, a rational formula of acetic acid is
CH3.(C:O).OH; -- called also structural formula,
constitutional formula, etc. See also the formula of
Benzene nucleus, under Benzene.
Molecular formula (Chem.), a formula indicating the
supposed molecular constitution of a compound.
[1913 Webster]Structural formula \Struc"tur*al form"u*la\ (Chem.)
a symbolic representation of the structure of one molecule of
a chemical compound, showing the attachments of the atoms to
each other, and representing their arrangement in space; the
spatial representation is symbolic and approximate, and it
may or may not depict the stereochemical relations of the
bonds. Distinguished from empirical formula. See also
Rational formula, under Formula.
[PJC] |
Structural formula
(gcide) | Formula \For"mu*la\, n.; pl. E. Formulas, L. Formul[ae].
[L., dim. of forma form, model. SeeForm, n.]
1. A prescribed or set form; an established rule; a fixed or
conventional method in which anything is to be done,
arranged, or said.
[1913 Webster]
2. (Eccl.) A written confession of faith; a formal statement
of foctrines.
[1913 Webster]
3. (Math.) A rule or principle expressed in algebraic
language; as, the binominal formula.
[1913 Webster]
4. (Med.) A prescription or recipe for the preparation of a
medicinal compound.
[1913 Webster]
5. (Chem.) A symbolic expression (by means of letters,
figures, etc.) of the constituents or constitution of a
compound.
[1913 Webster]
Note: Chemical formul[ae] consist of the abbreviations of the
names of the elements, with a small figure at the lower
right hand, to denote the number of atoms of each
element contained.
[1913 Webster]
Empirical formula (Chem.), an expression which gives the
simple proportion of the constituents; as, the empirical
formula of acetic acid is C2H4O2.
Graphic formula, Rational formula (Chem.), an expression
of the constitution, and in a limited sense of the
structure, of a compound, by the grouping of its atoms or
radicals; as, a rational formula of acetic acid is
CH3.(C:O).OH; -- called also structural formula,
constitutional formula, etc. See also the formula of
Benzene nucleus, under Benzene.
Molecular formula (Chem.), a formula indicating the
supposed molecular constitution of a compound.
[1913 Webster]Structural formula \Struc"tur*al form"u*la\ (Chem.)
a symbolic representation of the structure of one molecule of
a chemical compound, showing the attachments of the atoms to
each other, and representing their arrangement in space; the
spatial representation is symbolic and approximate, and it
may or may not depict the stereochemical relations of the
bonds. Distinguished from empirical formula. See also
Rational formula, under Formula.
[PJC] |
benzene formula
(wn) | benzene formula
n 1: a closed chain of 6 carbon atoms with hydrogen atoms
attached [syn: benzene formula, benzene ring, {benzene
nucleus}, Kekule formula] |
chemical formula
(wn) | chemical formula
n 1: a representation of a substance using symbols for its
constituent elements [syn: formula, chemical formula] |
empirical formula
(wn) | empirical formula
n 1: a chemical formula showing the ratio of elements in a
compound rather than the total number of atoms |
formulaic
(wn) | formulaic
adj 1: characterized by or in accordance with some formula |
formularise
(wn) | formularise
v 1: express as a formula [syn: formularize, formularise] |
formularize
(wn) | formularize
v 1: express as a formula [syn: formularize, formularise] |
|