| slovo | definícia |
O2
(gcide) | Chromophore \Chro"mo*phore\, n. [Gr. ? color + fe`rein to bear.]
(Chem.)
Any chemical group or residue (as NO2; N2; or O2) which
imparts some decided color to the compound of which it is an
ingredient.
[1913 Webster] |
o2
(foldoc) | O2
Object-Oriented. Object-oriented database language used in
the Altair project. Implemented as an interpreter. GIP
Altair, Versailles, France. Francois Bancilhon et al, in
Advances in Object-Oriented Database Systems, K.R. Dittrich
ed, LNCS 334, Springer 1988. See CO2.
|
| | podobné slovo | definícia |
Ag2C2N2O2
(gcide) | Silver \Sil"ver\ (s[i^]l"v[~e]r), n. [OE. silver, selver,
seolver, AS. seolfor, siolfur, siolufr, silofr, sylofr; akin
to OS. silubar, OFries. selover, D. zilver, LG. sulver, OHG.
silabar, silbar, G. silber, Icel. silfr, Sw. silfver, Dan.
s["o]lv, Goth. silubr, Russ. serebro, Lith. sidabras; of
unknown origin.]
1. (Chem.) A soft white metallic element, sonorous, ductile,
very malleable, and capable of a high degree of polish. It
is found native, and also combined with sulphur, arsenic,
antimony, chlorine, etc., in the minerals argentite,
proustite, pyrargyrite, ceragyrite, etc. Silver is one of
the "noble" metals, so-called, not being easily oxidized,
and is used for coin, jewelry, plate, and a great variety
of articles. Symbol Ag (Argentum). Atomic weight 107.7.
Specific gravity 10.5.
[1913 Webster]
Note: Silver was known under the name of luna to the ancients
and also to the alchemists. Some of its compounds, as
the halogen salts, are remarkable for the effect of
light upon them, and are used in photography.
[1913 Webster]
2. Coin made of silver; silver money.
[1913 Webster]
3. Anything having the luster or appearance of silver.
[1913 Webster]
4. The color of silver.
[1913 Webster]
Note: Silver is used in the formation of many compounds of
obvious meaning; as, silver-armed, silver-bright,
silver-buskined, silver-coated, silver-footed,
silver-haired, silver-headed, silver-mantled,
silver-plated, silver-slippered, silver-sounding,
silver-studded, silver-tongued, silver-white. See
Silver, a.
[1913 Webster]
Black silver (Min.), stephanite; -- called also {brittle
silver ore}, or brittle silver glance.
Fulminating silver. (Chem.)
(a) A black crystalline substance, Ag2O.(NH3)2, obtained
by dissolving silver oxide in aqua ammonia. When dry
it explodes violently on the slightest percussion.
(b) Silver fulminate, a white crystalline substance,
Ag2C2N2O2, obtained by adding alcohol to a solution
of silver nitrate; -- also called {fulminate of
silver}. When dry it is violently explosive.
German silver. (Chem.) See under German.
Gray silver. (Min.) See Freieslebenite.
Horn silver. (Min.) See Cerargyrite.
King's silver. (O. Eng. Law) See Postfine.
Red silver, or Ruby silver. (Min.) See Proustite, and
Pyrargyrite.
Silver beater, one who beats silver into silver leaf or
silver foil.
Silver glance, or Vitreous silver. (Min.) See
Argentine.
[1913 Webster] |
C10H12O2
(gcide) | Eugenol \Eu"ge*nol\, n. [Eugenia + -ol.] (Chem.)
A colorless, aromatic, liquid hydrocarbon, C10H12O2
resembling the phenols, and hence also called eugenic acid.
It is found in the oils of pimento and cloves.
[1913 Webster] |
C10H13O2N
(gcide) | Phenacetin \Phe*nac"e*tin\, Phenacetine \Phe*nac"e*tine\, n.
[Phenyl + acetic + -in.] (Pharm.)
A white, crystalline compound, C10H13O2N, once used in
medicine principally as an antipyretic. It is now seldom used
because of serious side effects.
Syn: N-(4-ethoxyphenyl)acetamide, p-acetophenetidide,
p-ethoxyacetanilide, acetophenetidin,
para-acetphenetidin, p-acetophenetide.
[Webster 1913 Suppl. +PJC] |
C10H18O2
(gcide) | Camphoric \Cam*phor"ic\, a. [Cf. F. camphorique.] (Chem.)
Of, pertaining to, or derived from, camphor.
[1913 Webster]
Camphoric acid, a white crystallizable substance,
C10H16O4, obtained from the oxidation of camphor.
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Note: Other acids of camphor are campholic acid, C10H18O2,
and camphoronic acid, C9H12O5, white crystallizable
substances.
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C10H21CO2H
(gcide) | Undecylic \Un`de*cyl"ic\, a. (Chem.)
Related to, derived from, or containing, the undecyl radical;
specifically, designating that member of the fatty acids
which corresponds to undecane, and is obtained as a white
crystalline substance, C10H21.CO2H.
[1913 Webster] |
C10H6O2
(gcide) | Naphthoquinone \Naph`tho*qui"none\, n. [Naphthalene + quinone.]
(Chem.)
A yellow crystalline substance, C10H6O2, analogous to
quinone, obtained by oxidizing naphthalene with chromic acid.
[1913 Webster] |
C10H9NO2
(gcide) | indoleacetic acid \in"dole*a*cet"ic ac"id\ ([i^]n"d[=o]l), n.
(Chem., Bot.)
A plant hormone (C10H9NO2) recognized as the principle
growth regulator in higher plants; called also heteroauxin.
Abbreviated IAA. Chemically it is 1H-indole-3-acetic acid.
[PJC] |
C11H18O2
(gcide) | Undecolic \Un`de*col"ic\, a. [Undecylenic + propiolic.] (Chem.)
Pertaining to, or designating, an acid, C11H18O2, of the
propiolic acid series, obtained indirectly from undecylenic
acid as a white crystalline substance.
[1913 Webster] |
C11H20O2
(gcide) | Undecylenic \Un*dec`y*len"ic\, a. (Chem.)
Pertaining to, or designating, an acid C11H20O2, homologous
with acrylic acid, and obtained as a white crystalline
substance by the distillation of castor oil.
[1913 Webster] |
C11H7O2C5H8nH
(gcide) | vitamin K2 \vitamin K2\, vitamins K2 \vitamins K2\n.
one of the two K vitamins, actually a mixture of homologous
fat-soluble substituted naphthoquinones (called
menaquinones), (C11H7O2[C5H8]nH), where n may be 1 to 13
but is mostly 7 to 9. The term is also used for synthetic
compounds resembling vitamin K2 and having the same
physiological action. The individual components of vitamin K2
are also referred to by the number of isoprenyl units in the
side chain (the number n in the formula), as for menadione,
having no units at that position of the naphthaquinone ring,
and also called vitamin K2(0) (and also called vitamin K3).
--[MI11]
Syn: menaquinones, antihemorrhagic vitamin..
[WordNet 1.5 +PJC] |
C11H8N3O2S2
(gcide) | Firefly luciferin \Fire"fly` lu*cif"er*in\, n. (Biochem.)
a type of luciferin produced by the firefly {Photinus
pyralis}.
Note: Its structure has been elucidated, and chemically it is
recognized as
4,5-Dihydro-2-(6-hydroxy-2-benzothiazol-2-yl)-4-thiazolecarboxylic
acid, C11H8N3O2S2. It has found use in a very
sensitive assay for ATP, in which concentrations of ATP
as low as 10^-11 molar can be detected. --[MI11]
[PJC] |
C11H8O2
(gcide) | vitamin K3 \vitamin K3\ n.
menadione, (C11H8O2) being chemically
2-methyl-1,4,-naphthoquinone. Having no side chain in the 3
position, it cannot exert all functions of a true K vitamin
and the designation as vitamin K3 has been discouraged
--[MI11]
Syn: vitaminK2(0); menaphthone.
[WordNet 1.5] |
C12H9NO2
(gcide) | Indophenol \In`do*phe"nol\, n. [Indigo + phenol.] (Chem.)
Any one of a series of artificial blue dyestuffs, resembling
indigo in appearance, and obtained by the action of phenol on
certain nitrogenous derivatives of quinone. Simple indophenol
proper, the parent compound of the dye series, is a
quinonimine derivative with the formula C12H9NO2.
[1913 Webster +PJC] |
C14H12O2
(gcide) | Benzoin \Ben*zoin"\ (b[e^]n*zoin"), n. [Cf. F. benjoin, Sp.
benjui, Pg. beijoin; all fr. Ar. lub[=a]n-j[=a]w[imac]
incense form Sumatra (named Java in Arabic), the first
syllable being lost. Cf. Benjamin.]
Note: [Called also benjamin.]
1. A resinous substance, dry and brittle, obtained from the
Styrax benzoin, a tree of Sumatra, Java, etc., having a
fragrant odor, and slightly aromatic taste. It is used in
the preparation of benzoic acid, in medicine, and as a
perfume.
[1913 Webster]
2. A white crystalline substance, C14H12O2, obtained from
benzoic aldehyde and some other sources.
[1913 Webster]
3. (Bot.) The spicebush (Lindera benzoin).
[1913 Webster]
Flowers of benzoin, benzoic acid. See under Benzoic.
[1913 Webster] |
C14H22O2NCl
(gcide) | Stovain \Sto"va*in\, n. Also Stovine \Sto"vine\ . [Stove (a
translation of the name of the discoverer, Fourneau + -in,
-ine.] (Pharm.)
A substance, C14H22O2NCl, the hydrochloride of an amino
compound containing benzol, used, in solution with
strychnine, as a local anaesthetic, esp. by injection into
the sheath of the spinal cord, producing anaesthesia below
the point of introduction. Called also {amylocaine
hydrochloride}. Chemically it is the hydrochloride of the
benzoyl ester of 1-(dimethylaminomethyl)-1-methyl propanol.
[Webster 1913 Suppl.] |
C14H28O2
(gcide) | Myristic \My*ris"tic\ (m[i^]*r[i^]s"t[i^]k), a. (Chem.)
Pertaining to, or derived from, the nutmeg (Myristica).
Specifically, designating an acid (C14H28O2) found in
nutmeg oil and otoba fat, and extracted as a white
crystalline waxy substance.
[1913 Webster] |
C14H6O2OH2
(gcide) | Alizarin \A*liz"a*rin\, Alizarine \A*liz"a*rine\, n. [F.
alizarine, fr. alizari.] (Chem.)
A coloring principle, C14H6O2(OH)2, found in madder, and
now produced artificially as an an orange-red crystalline
compound from anthracene. It is used in making red pigments
(such as the Turkish reds), and in dyeing.
[1913 Webster WordNet 1.5] |
C16H10N2O2
(gcide) | Indigo \In"di*go\, a.
Having the color of, pertaining to, or derived from, indigo.
[1913 Webster]
Indigo berry (Bot.), the fruit of the West Indian shrub
Randia aculeata, used as a blue dye.
Indigo bird (Zool.), a small North American finch
(Cyanospiza cyanea). The male is indigo blue in color.
Called also indigo bunting.
Indigo blue.
(a) The essential coloring material of commercial indigo,
from which it is obtained as a dark blue earthy powder,
with a reddish luster, C16H10N2O2, which may be
crystallized by sublimation. Indigo blue is also made
from artificial amido cinnamic acid, and from artificial
isatine; and these methods are of great commercial
importance. Called also indigotin.
(b) A dark, dull blue color like the indigo of commerce.
Indigo brown (Chem.), a brown resinous substance found in
crude indigo.
Indigo copper (Min.), covellite.
Indigo green, a green obtained from indigo.
Indigo plant (Bot.), a leguminous plant of several species
(genus Indigofera), from which indigo is prepared. The
different varieties are natives of Asia, Africa, and
America. Several species are cultivated, of which the most
important are the Indigofera tinctoria, or {common
indigo plant}, the Indigofera Anil, a larger species,
and the Indigofera disperma.
Indigo purple, a purple obtained from indigo.
Indigo red, a dyestuff, isomeric with indigo blue, obtained
from crude indigo as a dark brown amorphous powder.
Indigo snake (Zool.), the gopher snake.
Indigo white, a white crystalline powder obtained by
reduction from indigo blue, and by oxidation easily
changed back to it; -- called also indigogen.
Indigo yellow, a substance obtained from indigo.
[1913 Webster] |
C16H32O2
(gcide) | Palmitic \Pal*mit"ic\, a. (Physiol. Chem.)
Pertaining to, or obtained from, palmitin or palm oil; as,
palmitic acid (C16H32O2), a white crystalline substance
belonging to the fatty acid series. It is readily soluble in
hot alcohol, and melts to a liquid oil at 62[deg] C.
[1913 Webster] |
C17H34O2
(gcide) | Margaric \Mar*gar"ic\, a. [Cf. F. margarique. See Margarite.]
Pertaining to, or resembling, pearl; pearly.
[1913 Webster]
Margaric acid.
(a) (Physiol. Chem.) A fatty body, crystallizing in pearly
scales, and obtained by digesting saponified fats (soaps)
with an acid. It was formerly supposed to be an
individual fatty acid, but is now known to be simply an
intimate mixture of stearic and palmitic acids.
(b) (Chem.) A white, crystalline substance, C17H34O2 of the
fatty acid series, intermediate between palmitic and
stearic acids, and obtained from the wax of certain
lichens, from cetyl cyanide, and other sources. Called
also heptadecanoic acid.
[1913 Webster] |
C18H19NO2
(gcide) | Apocodeine \Ap`o*co*de"ine\, n. [Pref. apo- + codeine.] (Chem.)
An alkaloid, C18H19NO2, prepared from codeine. In its
effects it resembles apomorphine.
[Webster 1913 Suppl.] |
C18H30N2O2
(gcide) | butacaine \butacaine\ n.
a white crystalline ester (C18H30N2O2) that is applied to
mucous membranes as a topical anesthetic. Chemically it is
3-(di-n-butylamino)-1-propanol 4-aminobenzoate
(H2N.C6H4.CO.O.(CH2)3N(C4H9)2). It is usually used as the
sulfate salt.
Syn: butacaine sulfate.
[WordNet 1.5 +PJC] |
C19H28O2
(gcide) | Testosterone \Tes*tos"ter*one\ (t[e^]s*t[o^]s"t[~e]r*[=o]n), n.
[testes + o + sterone a steroid ketone.]
a steroid hormone (C19H28O2) produced mostly in the testes,
which is responsible for producing the secondary sexual
characteristics of males.
[PJC] |
C20H24N2O2
(gcide) | Quinine \Qui"nine\, n. [F. (cf. Sp. quinina), fr. Sp. quina, or
quinaquina, Peruvian bark, fr. Peruv. kina, quina, bark. Cf.
Kinic.] (Chem.)
An alkaloid extracted from the bark of several species of
cinchona (esp. Cinchona Calisaya) as a bitter white
crystalline substance, C20H24N2O2. Hence, by extension
(Med.), any of the salts of this alkaloid, as the acetate,
chloride, sulphate, etc., employed as a febrifuge or
antiperiodic. Called also quinia, quinina, etc. [Written
also chinine.]
[1913 Webster] |
C20H28O2
(gcide) | Retinoic acid \Ret`in*o"ic ac"id\, n. (Chem.)
A retinoid compound (C20H28O2), closely related to vitamin
A. It is also called tretinoin and vitamin A acid.
[PJC] |
C21H20O2
(gcide) | tetrahydrocannabinol \tet`ra*hy`dro*can*nab"i*nol\
(t[e^]t`r[.a]*h[imac]`dr[-o]*k[a^]n*n[a^]b"[i^]n[add]l), n.
(Chem. & Med.)
A chemical substance (C21H20O2) which is produced by the
hemp plant (Cannabis sativa), and is the physiologically
active agent of dried preparations of that plant, called
variously marijuana, hashish, ganja, hemp, etc.; also called
THC. It causes the euphoric effect for which the
preparations are smoked or chewed. It is used in medicine in
a purified form as an antiemetic (an antinausea agent),
especially in conjunction with chemotherapy of cancer. It
occurs primarily as the [Delta]1-3,4-trans isomer, also
called [Delta]9-THC, with small amounts of the
[Delta]6-3,4-trans isomer detectable at about 1%. It is a
controlled substance, classified as a hallucinogen, and its
possession or distribution is illegal in almost all states of
the United States. --MI11
[PJC] |
C2H2CO2H2
(gcide) | Fumaric \Fu*mar"ic\, a. (Chem.)
Pertaining to, or derived from, fumitory ({Fumaria
officinalis}).
[1913 Webster]
Fumaric acid (Chem.), a widely occurring organic acid,
extracted from fumitory as a white crystallline substance,
C2H2(CO2H)2, and produced artificially in many ways, as
by the distillation of malic acid; boletic acid. It is
found also in the lichen, Iceland moss, and hence was also
called lichenic acid.
[1913 Webster] |
C2H2OH2CO2H2
(gcide) | Tartaric \Tar*tar"ic\, a. (Chem.)
Of or pertaining to tartar; derived from, or resembling,
tartar.
[1913 Webster]
Tartaric acid. (a) An acid widely diffused throughout the
vegetable kingdom, as in grapes, mountain-ash berries,
etc., and obtained from tartar as a white crystalline
substance, C2H2(OH)2.(CO2H)2, having a strong pure acid
taste. It is used in medicine, in dyeing, calico printing,
photography, etc., and also as a substitute for lemon
juice. Called also dextro-tartaric acid.
(b) By extension, any one of the series of isomeric acids
(racemic acid, levotartaric acid, inactive tartaric acid)
of which tartaric acid proper is the type.
[1913 Webster] |
C2H4CO2NH
(gcide) | Succinimide \Suc`cin*im"ide\, n. (Chem.)
A white crystalline nitrogenous substance, C2H4.(CO)2.NH,
obtained by treating succinic anhydride with ammonia gas. It
is a typical imido acid, and forms a series of salts. See
Imido acid, under Imido.
[1913 Webster] |
C2H4O2
(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] |
C2N2O2H2
(gcide) | Polymeric \Pol`y*mer"ic\, a. [Poly- + Gr. ? part.] (Chem.)
Having the same percentage composition (that is, having the
same elements united in the same proportion by weight), but
different molecular weights; -- often used with with; thus,
cyanic acid (CNOH), fulminic acid (C2N2O2H2), and
cyanuric acid (C3N3O3H3), are polymeric with each other.
[1913 Webster]
Note: The figures expressing the number of atoms of each
element in a number of polymeric substances are
respectively multiples and factors of each other, or
have some simple common divisor. The relation may be
merely a numerical one, as in the example given above,
or a chemical one, as in the case of aldehyde,
paraldehyde, and metaldehyde.
[1913 Webster]
[1913 Webster] |
C2O2
(gcide) | Oxalyl \Ox"a*lyl\, n. [Oxalic + -yl.] (Chem.)
(a) A hydrocarbon radical (C2O2) regarded as a residue of
oxalic acid and occurring in derivatives of it.
(b) An old name for carbonyl.
(c) An old name for carboxyl.
[1913 Webster] |
C2O2N3H5
(gcide) | Biuret \Bi"u*ret\, n. [Pref. bi- + urea.] (Chem.)
A white, crystalline, nitrogenous substance, C2O2N3H5,
formed by heating urea. It is intermediate between urea and
cyanuric acid.
[1913 Webster] |
C2O2NH22
(gcide) | Oxamide \Ox*am"ide\, n, [Oxalic + amide.] (Chem.)
A white crystalline neutral substance (C2O2(NH2)2) obtained
by treating ethyl oxalate with ammonia. It is the acid amide
of oxalic acid. Formerly called also oxalamide.
[1913 Webster] |
C30H50O2
(gcide) | Betulin \Bet"u*lin\, n. [L. betula birch tree.] (Chem.)
a term originally applied to a substance obtained as a resin
or tar by extraction from the outer bark of the common
European white birch (Betula alba); now referring to the
chemical compound (C30H50O2) having a
cyclopentanophenanthrene ring system, which is the main
constituent of that extract, and which may be obtained
crystalline; -- called also birch camphor. --Watts.
[1913 Webster +PJC] |
C31H46O2
(gcide) | vitamin K1 \vitamin K1\ n.
one of the two K vitamins, (C31H46O2). It is fat-soluble
and occurs naturally as the trans isomer. Chemically it is
2-methyl-3-phytyl-1,4,-naphthoquinone.
Syn: phylloquinone, phytonadione, antihemorrhagic vitamin..
[WordNet 1.5 +PJC] vitamin K2 |
C3H3CO2H
(gcide) | Tetrolic \Tet*rol"ic\, a. (Chem.)
Of, pertaining to, or designating, an acid, C3H3.CO2H, of
the acetylene series, homologous with propiolic acid,
obtained as a white crystalline substance.
[1913 Webster] |
C3H4CO2H2
(gcide) | Citraconic \Cit`ra*con"ic\, a. [Citric + aconitic.]
Pertaining to, derived from, or having certain
characteristics of, citric and aconitic acids.
[1913 Webster]
Citraconic acid (Chem.), a white, crystalline, deliquescent
substance, C3H4(CO2H)2, obtained by distillation of
citric acid. It is a compound of the ethylene series.
[1913 Webster] |
C3H4N2O2
(gcide) | Hydantoin \Hy*dan"to*in\, n. [Hydrogen + allantion.] (Chem.)
A derivative of urea, C3H4N2O2, obtained from allantion, as
a white, crystalline substance, with a sweetish taste; --
called also glycolyl urea.
[1913 Webster] |
C3H4OHCO2H3
(gcide) | Citric \Cit"ric\, a. [Cf. F. citrique. See Citron.] (Chem.)
Of, pertaining to, or derived from, the citron or lemon; as,
citric acid.
[1913 Webster]
Citric acid (Chem.), an organic acid, C3H4OH.(CO2H)3,
extracted from lemons, currants, gooseberries, etc., as a
white crystalline substance, having a pleasant sour taste.
[1913 Webster] |
C3H5CO2H
(gcide) | Crotonic \Cro*ton"ic\ (kr?-t?n"?k), a.
Of or pertaining to, or derived from, a plant of the genus
Croton, or from croton oil.
[1913 Webster]
Crotonic acid (Chem.), a white crystalline organic acid,
C3H5.CO2H, of the ethylene, or acrylic acid series. It
was so named because formerly supposed to exist in croton
oil. Also, any acid metameric with crotonic acid proper.
[1913 Webster]
Note: The acid characteristic of croton oil is tiglic or
tiglinic acid, a derivative of crotonic acid.
[1913 Webster] |
C3H5CO2H3
(gcide) | Tricarballylic \Tri*car`bal*lyl"ic\, a. [Pref. tri- + carboxyl +
allyl + -ic.] (Chem.)
Of, pertaining to, or designating, a complex tribasic organic
acid, C3H5.(CO2H)3 occurring naturally in unripe beet
roots, and produced artificially from glycerin as a white
crystalline substance.
[1913 Webster] |
C3H6OHCO2H
(gcide) | Oxybutyric \Ox`y*bu*tyr"ic\, a. [Oxy
(b) + butyric.] (Chem.) Hydroxybutyric; designating any one
of a group of metameric acids ((C3H6.OH).CO2H).
[1913 Webster] |
C3H7C6H4CO2H
(gcide) | Cuminic \Cu*min"ic\ (k?-m?n"?k), a.
Pertaining to, or derived from, cumin, or from oil of
caraway; as, cuminic acid.
[1913 Webster]
Cuminic acid (Chem.), white crystalline substance,
C3H7.C6H4.CO2H, obtained from oil of caraway.
[1913 Webster] |
C3H7CO2H
(gcide) | Butyric \Bu*tyr"ic\, a. (Chem.)
Pertaining to, or derived from, butter.
[1913 Webster]
Butyric acid, C3H7.CO2H, an acid found in butter; an
oily, limpid fluid, having the smell of rancid butter, and
an acrid taste, with a sweetish aftertaste, like that of
ether. There are two metameric butyric acids, called in
distinction the normal- and iso-butyric acid. The normal
butyric acid is the one common in rancid butter.
[1913 Webster] |
C3H7NO2
(gcide) | Alanine \Al"a*nine\, n. [Aldehyde + the ending -ine. The -n- is
a euphonic insertion.] (Chem.)
one of the natural amino acids found combined in the proteins
of most living tissues. It can be isolated as a white
crystalline base, C3H7NO2. The natural form is the
L-configuration.
[1913 Webster +PJC] |
C3H7NSO2
(gcide) | Cystine \Cyst"ine\ (s?s"t?n; 104), n. [See Cyst.] (Physiol.
Chem.)
A white crystalline substance, C3H7NSO2, containing
sulphur, occuring as a constituent of certain rare urinary
calculi, and occasionally found as a sediment in urine.
[1913 Webster] |
C4H3O2C2O2
(gcide) | Furile \Fu"rile\, n. [Furfurol + benzile.] (Chem.)
A yellow, crystalline substance, (C4H3O)2.C2O2, obtained by
the oxidation of furoin. [Written also furil.]
[1913 Webster] |
C4H7CO2H
(gcide) | Tiglic \Tig"lic\, a. (Chem.)
Of, pertaining to, or designating, an acid, C4H7CO2H
(called also methyl crotonic acid), homologous with crotonic
acid, and obtained from croton oil (from Croton Tiglium) as
a white crystalline substance.
[1913 Webster] |
C4H7N3O2
(gcide) | Trigenic \Tri*gen"ic\, a. [Pref. tri- + gen- + -ic. So named in
reference to its composition, it being supposed to contain
the radicals of three molecules of cyanic acid.] (Chem.)
Of, pertaining to, or designating, an acid, C4H7N3O2,
obtained, by the action of the vapor of cyanic acid on cold
aldehyde, as a white crystalline substance having a slightly
acid taste and faint smell; -- called also ethidene-biuret
or ethylidene-biuret.
[1913 Webster] |
C4H8O2
(gcide) | Aldol \Al"dol\, n. [Aldehyde + -ol as in alcohol.] (Chem.)
A colorless liquid, C4H8O2, obtained by condensation of two
molecules of acetaldehyde: CH3CHO + CH3CHO = H3CH(OH)CH2CO;
also, any of various derivatives of this. The same reaction
has been applied, under the name of
aldol condensation, to the production of many compounds.
[Webster 1913 Suppl.] |
C4H9CO2H
(gcide) | Valeric \Va*ler"ic\, a. (Chem.)
Valerianic; specifically, designating any one of three
metameric acids, of which the typical one (called also
inactive valeric acid), C4H9CO2H, is obtained from
valerian root and other sources, as a corrosive, mobile, oily
liquid, having a strong acid taste, and an odor of old
cheese.
[1913 Webster]
Active valeric acid, a metameric variety which turns the
plane of polarization to the right, although formed by the
oxidation of a levorotatory amyl alcohol.
[1913 Webster] |
C5H10CO2H2
(gcide) | Pimelic \Pi*mel"ic\ (p[i^]*m[e^]l"[i^]k), a. [Gr. pimelh` fat.]
(Chem.)
(a) Pertaining to, or designating, a substance obtained from
certain fatty substances, and subsequently shown to be a
mixture of suberic and adipic acids.
(b) Designating the acid proper (C5H10(CO2H)2) which is
obtained from camphoric acid.
[1913 Webster] |
C5H11CO2H
(gcide) | Capric \Cap"ric\, a. [L. caper goat.] (Chem.)
Of or pertaining to capric acid or its derivatives.
[1913 Webster]
Capric acid (also called decanoic acid), C9H19.CO.OH,
Caprylic acid (also called octanoic acid), C7H15.CO2.H,
and Caproic acid (also called hexanoic acid),
C5H11.CO2.H, are fatty acids occurring in small
quantities in butter, cocoanut oil, etc., united with
glycerin; they are colorless oils, or white crystalline
solids, of an unpleasant odor like that of goats or sweat.
[1913 Webster] |
C5H11NO2
(gcide) | Amyl nitrite \Amyl nitrite\
A yellowish oily volatile liquid, C5H11NO2, used in
medicine as a heart stimulant and a vasodilator. The
inhalation of its vapor instantly produces flushing of the
face.
[Webster 1913 Suppl.]Betaine \Be"ta*ine\, n. [From beta, generic name of the beet.]
(Chem.)
A nitrogenous base, C5H11NO2, produced artificially, and
also occurring naturally in beet-root molasses and its
residues, from which it is extracted as a white crystalline
substance; -- called also lycine and oxyneurine. It has a
sweetish taste.
[1913 Webster] |
C5H11NO2S
(gcide) | Penicillamine \Pen`i*cil"lam*ine\, n. (Chem., Med.)
A substance (C5H11NO2S) which is a degradation product of
the penicillins. Chemically it is 3-mercapto-D-valine. It has
chelating properties and is used in medicine as an
antirheumatic and to chelate copper in cases of
hepatolenticular degeneration (Wilson's disease).
[PJC] |
C5H13NO2
(gcide) | Muscarin \Mus*ca"rin\, n. (Physiol. Chem.)
A solid crystalline substance, C5H13NO2, found in the
toadstool (Agaricus muscarius), and in putrid fish. It is a
typical ptomaine, and a violent poison.
[1913 Webster] |
C5H4O2
(gcide) | Pyrone \Py`rone\, n. [G. pyron, an abbr. of pyrokoman.] (Org.
Chem.)
An unsaturated cyclic compound, C5H4O2, of which two
varieties are known, [alpha] and [gamma]. [gamma]-pyrone is
the parent substance of several natural yellow dyestuffs. |
C5H4O2N4
(gcide) | Xanthine \Xan"thine\, n. Also Xanthin \Xan"thin\ . [Gr. xanqo`s
yellow.] (Physiol. Chem.)
A type of purine obtainable as a white microcrystalline
powder, C5H4O2N4, present in muscle tissue, in the liver,
spleen, pancreas, and other organs, and also in urine (in
small quantities) and some urinary calculi, and in the juices
of certain plants; -- so called because it leaves a yellow
residue when evaporated to dryness with nitric acid. It is
also present in guano. Xanthine is closely related to uric
acid.
[Webster 1913 Suppl.] |
C6Cl4O2
(gcide) | Chloranil \Chlor`an"il\, n. [Chlorine + aniline.] (Chem.)
A yellow crystalline substance, C6Cl4.O2, regarded as a
derivative of quinone, obtained by the action of chlorine on
certain benzene derivatives, as aniline.
[1913 Webster] |
C6CO2H6
(gcide) | Mellitic \Mel*lit"ic\, a. [Cf. F. mellitique. See Mellite.]
(Chem.)
(a) Containing saccharine matter; marked by saccharine
secretions; as, mellitic diabetes.
(b) Pertaining to, or derived from, the mineral mellite.
[1913 Webster]
Mellitic acid (Chem.), a white, crystalline, organic
substance, C6(CO2H)6, occurring naturally in combination
with aluminium in the mineral mellite, and produced
artificially by the oxidation of coal, graphite, etc., and
hence called also graphitic acid.
[1913 Webster] |
C6H10O2
(gcide) | Saccharone \Sac"cha*rone\, n. [Saccharin + lactone.] (Chem.)
(a) A white crystalline substance, C6H8O6, obtained by the
oxidation of saccharin, and regarded as the lactone of
saccharonic acid.
(b) An oily liquid, C6H10O2, obtained by the reduction of
saccharin.
[1913 Webster] |
C6H12CO2H2
(gcide) | Suberic \Su*ber"ic\, a. [L. suber the cork tree: cf. F.
sub['e]reque.] (Chem.)
Of or pertaining to cork; specifically, designating an acid,
C6H12.(CO2H)2, homologous with oxalic acid, and obtained
from cork and certain fatty oils, as a white crystalline
substance.
[1913 Webster] |
C6H13NO2
(gcide) | Mydatoxin \Myd`a*tox"in\, n. [Gr. myda^n to be clammy (from
decay) + toxic + in.] (Physiol. Chem.)
A poisonous amido acid, C6H13NO2, separated by Brieger from
decaying horseflesh. In physiological action, it is similar
to curare.
[1913 Webster] |
C6H2HO3CO2H
(gcide) | Gallic \Gal"lic\ (277), a. [From Gall the excrescence.]
Pertaining to, or derived from, galls, nutgalls, and the
like.
[1913 Webster]
Gallic acid (Chem.), an organic acid, very widely
distributed in the vegetable kingdom, being found in the
free state in galls, tea, etc., and produced artificially.
It is a white, crystalline substance, C6H2(HO)3.CO2H,
with an astringent taste, and is a strong reducing agent,
as employed in photography. It is usually prepared from
tannin, and both give a dark color with iron salts,
forming tannate and gallate of iron, which are the
essential ingredients of common black ink.
[1913 Webster] |
C6H2NO23OH
(gcide) | Picric \Pi"cric\, a. [Gr. ? bitter.] (Chem.)
Pertaining to, or designating, a strong organic acid (called
picric acid), intensely bitter.
[1913 Webster]
Note: Picric acid is obtained by treating phenol with strong
nitric acid, as a brilliant yellow crystalline
substance, C6H2(NO2)3.OH. It is used in dyeing silk
and wool, and also in the manufacture of explosives, as
it is very unstable when heated. Called also
trinitrophenol, and formerly carbazotic acid.
[1913 Webster] |
C6H3CO23
(gcide) | Trimesitic \Tri`me*sit"ic\, a. [Pref. tri- + mesitylene + -ic.]
(Chem.)
Of, pertaining to, or designating, a tribasic acid,
C6H3.(CO2)3, of the aromatic series, obtained, by the
oxidation of mesitylene, as a white crystalline substance.
[Written also trimesic.]
[1913 Webster] |
C6H4C2O2C6H4
(gcide) | Anthraquinone \An`thra*qui"none\, n. [Anthracene + quinone.]
(Chem.)
A hydrocarbon, C6H4.C2O2.C6H4, subliming in shining yellow
needles. It is obtained by oxidation of anthracene.
[1913 Webster] |
C6H4CO2H2
(gcide) | Phthalic \Phthal"ic\, a. [Naphthalene + -ic.] (Chem.)
Pertaining to, or designating, a dibasic acid obtained by the
oxidation of naphthalene and allied substances.
[1913 Webster]
Phthalic acid (Chem.), a white crystalline substance,
C6H4.(CO2H)2, analogous to benzoic acid, and employed in
the brilliant dyestuffs called the phthaleins.
[1913 Webster] |
C6H4CO2NH
(gcide) | Phthalimide \Phthal"i*mide\, n. [Phthalic + imide.] (Chem.)
An imido derivative of phthalic acid, obtained as a white
crystalline substance, C6H4.(CO)2NH, which has itself (like
succinimide) acid properties, and forms a series of salts.
Cf. Imido acid, under Imido.
[1913 Webster] |
C6H4O2
(gcide) | Quinone \Qui"none\, n. [Quinine + ketone.] (Chem.)
A crystalline substance, C6H4O2 (called also
benzoketone), first obtained by the oxidation of quinic
acid and regarded as a double ketone; also, by extension, any
one of the series of which quinone proper is the type.
[Written also chinone, kinone.]
[1913 Webster] |
C6H4SO2CONH
(gcide) | Sulphinide \Sul"phi*nide\, n. [Sulpho- + amine + anhydride.]
(Chem.)
A white or yellowish crystalline substance,
C6H4.(SO2.CO).NH, produced artificially by the oxidation of
a sulphamic derivative of toluene. It is the sweetest
substance known, having over two hundred times the sweetening
power of sugar, and is known in commerce under the name of
saccharine. It has acid properties and forms salts (which
are inaccurately called saccharinates). --I. Remsen.
[1913 Webster] |
C6H5C2H2C2H2CO2H
(gcide) | Cinnamic \Cin*nam"ic\, a. [From Cinnamon.] (Chem.)
Pertaining to, or obtained from, cinnamon.
[1913 Webster]
Cinnamic acid (Chem.), a white, crystalline, odorless
substance. C6H5.C2H2C2H2.CO2H, formerly obtained from
storax and oil of cinnamon, now made from certain benzene
derivatives in large quantities, and used for the
artificial production of indigo.
[1913 Webster] |
C6H5CO2H
(gcide) | Benzoic \Ben*zo"ic\ (b[e^]n*z[=o]"[i^]k), a. [Cf. F.
benzo["i]que.]
Pertaining to, or obtained from, benzoin.
[1913 Webster]
Benzoic acid, or flowers of benzoin, a peculiar vegetable
acid, C6H5.CO2H, obtained from benzoin, and some other
balsams, by sublimation or decoction. It is also found in
the urine of infants and herbivorous animals. It
crystallizes in the form of white, satiny flakes; its odor
is aromatic; its taste is pungent, and somewhat acidulous.
Benzoic aldehyde, oil of bitter almonds; the aldehyde,
C6H5.CHO, intermediate in composition between benzoic or
benzyl alcohol, and benzoic acid. It is a thin colorless
liquid.
[1913 Webster] |
C6H5NO2
(gcide) | Nitrobenzene \Ni`tro*ben"zene\ (? or ?), n. [Nitro- + benzene.]
(Chem.)
A yellow aromatic liquid (C6H5.NO2), produced by the action
of nitric acid on benzene, and called from its odor
imitation oil of bitter almonds, or essence of mirbane.
It is used in perfumery, and is manufactured in large
quantities in the preparation of aniline. Fornerly called
also nitrobenzol.
[1913 Webster] Nitrobenzolnitro- \ni"tro-\pref.
1. A combining form or an adjective denoting the presence of
niter.
[1913 Webster]
2. (Chem.) A combining form (used also adjectively)
designating certain compounds of nitrogen or of its acids;
as nitrohydrochloric, nitrocalcite; also, designating the
group or radical NO2, or its compounds, as nitrobenzene
(C6H5.NO2).
[1913 Webster]
Nitro group, the radical NO2; -- called also nitroxyl.
[1913 Webster]niacin \niacin\ n.
A B vitamin (vitamin B5) essential for the normal function of
the nervous system and the gastrointestinal tract. Called
also nicotinic acid and antipellagra vitamin. Chemical
formula C6H5NO2, chemically it is 3-pyridinecarboxylic
acid.
Syn: nicotinic acid.
[WordNet 1.5]nicotinic acid \nic`o*tin"ic ac"id\, n. (Chem.)
An organic acid (C6H5NO2), a carboxylated derivative of
pyridine, obtained by the oxidation of nicotine; called also
niacin and antipellagra vitamin, and vitamin B5.
Chemically it is 3-pyridinecarboxylic acid.
Note: It is a cofactor in several enzymatic reactions, and is
used to prevent a pellagra-like disease in dogs.
--[MI11]
Syn: 3-pyridinecarboxylic acid, niacin, antipellagra vitamin.
[1913 Webster +PJC] |
C6H5SO2OH
(gcide) | Sulphonic \Sul*phon"ic\, a. (Chem.)
Pertaining to, or derived from, a sulphone; -- used
specifically to designate any one of a series of acids
(regarded as acid ethereal salts of sulphurous acid) obtained
by the oxidation of the mercaptans, or by treating sulphuric
acid with certain aromatic bases (as benzene); as, phenyl
sulphonic acid, C6H5.SO2.OH, a stable colorless crystalline
substance.
[1913 Webster]
Sulphonic group (Chem.), the hypothetical radical,
SO2.OH, the characteristic residue of sulphonic acids.
[1913 Webster] |
C6H6O2
(gcide) | catechol \cat"e*chol\ (k[a^]t"[e^]*k[add]l`), n. [.]
any of a group of chemicals having a benzene ring substituted
with two hydroxyl groups in ortho position, especially
ortho-dihydroxybenzene itself (C6H6O2), also called
pyrocatechol, used in photography and as a reagent.
[PJC] |
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