| slovo | definícia |
aldehyde
(encz) | aldehyde,aldehyd n: Zdeněk Brož |
Aldehyde
(gcide) | Aldehyde \Al"de*hyde\ ([a^]l"d[-e]*h[imac]d), n. [Abbrev. fr.
alcohol dehydrogenatum, alcohol deprived of its hydrogen.]
1. (Chem.) A colorless, mobile, and very volatile liquid
obtained from alcohol by certain processes of oxidation.
[1913 Webster]
2. (Chem.) Any compound having the group -CHO. Methyl
aldehyde, the simplest aldehyde, is more commonly called
formaldehyde, H-CHO, and acetic aldehyde is now more
commonly called acetaldehyde. The higher aldehydes may
be solids. A reducing sugar typically contains the
aldehyde group.
[PJC]
Note: The aldehydes are intermediate between the alcohols and
acids, and differ from the alcohols in having two less
hydrogen atoms in the molecule, as common aldehyde
(called also acetaldehyde, acetic aldehyde or
ethyl aldehyde), C2H4O; methyl aldehyde (called
also formaldehyde), CH2O.
[1913 Webster +PJC]
Aldehyde ammonia (Chem.), a compound formed by the union of
aldehyde with ammonia.
[1913 Webster] |
aldehyde
(wn) | aldehyde
n 1: any of a class of highly reactive chemical compounds; used
in making resins and dyes and organic acids |
| | podobné slovo | definícia |
acetaldehyde
(encz) | acetaldehyde,acetaldehyd n: Zdeněk Brož |
aldehyde
(encz) | aldehyde,aldehyd n: Zdeněk Brož |
aldehyde resin
(encz) | aldehyde resin,aldehydová pryskyřice [eko.] RNDr. Pavel Piskač |
benzaldehyde
(encz) | benzaldehyde,benzaldehyd [eko.] RNDr. Pavel Piskač |
formaldehyde
(encz) | formaldehyde,formaldehyd n: luke |
furfuraldehyde
(encz) | furfuraldehyde, n: |
glyceraldehyde
(encz) | glyceraldehyde,glyceraldehyd n: Zdeněk Brož |
glyceric aldehyde
(encz) | glyceric aldehyde, n: |
paraldehyde
(encz) | paraldehyde,paraldehyd Zdeněk Brož |
polyvinyl-formaldehyde
(encz) | polyvinyl-formaldehyde, n: |
propionaldehyde
(encz) | propionaldehyde, n: |
trichloracetaldehyde
(encz) | trichloracetaldehyde,trichloracetaldehyd [eko.] RNDr. Pavel Piskač |
urea-formaldehyde resin
(encz) | urea-formaldehyde resin, n: |
Acetaldehyde
(gcide) | Acetaldehyde \Ac`et*al"de*hyde\, n.
Acetic aldehyde. See Aldehyde.
[1913 Webster]Aldehyde \Al"de*hyde\ ([a^]l"d[-e]*h[imac]d), n. [Abbrev. fr.
alcohol dehydrogenatum, alcohol deprived of its hydrogen.]
1. (Chem.) A colorless, mobile, and very volatile liquid
obtained from alcohol by certain processes of oxidation.
[1913 Webster]
2. (Chem.) Any compound having the group -CHO. Methyl
aldehyde, the simplest aldehyde, is more commonly called
formaldehyde, H-CHO, and acetic aldehyde is now more
commonly called acetaldehyde. The higher aldehydes may
be solids. A reducing sugar typically contains the
aldehyde group.
[PJC]
Note: The aldehydes are intermediate between the alcohols and
acids, and differ from the alcohols in having two less
hydrogen atoms in the molecule, as common aldehyde
(called also acetaldehyde, acetic aldehyde or
ethyl aldehyde), C2H4O; methyl aldehyde (called
also formaldehyde), CH2O.
[1913 Webster +PJC]
Aldehyde ammonia (Chem.), a compound formed by the union of
aldehyde with ammonia.
[1913 Webster] |
acetaldehyde
(gcide) | Acetaldehyde \Ac`et*al"de*hyde\, n.
Acetic aldehyde. See Aldehyde.
[1913 Webster]Aldehyde \Al"de*hyde\ ([a^]l"d[-e]*h[imac]d), n. [Abbrev. fr.
alcohol dehydrogenatum, alcohol deprived of its hydrogen.]
1. (Chem.) A colorless, mobile, and very volatile liquid
obtained from alcohol by certain processes of oxidation.
[1913 Webster]
2. (Chem.) Any compound having the group -CHO. Methyl
aldehyde, the simplest aldehyde, is more commonly called
formaldehyde, H-CHO, and acetic aldehyde is now more
commonly called acetaldehyde. The higher aldehydes may
be solids. A reducing sugar typically contains the
aldehyde group.
[PJC]
Note: The aldehydes are intermediate between the alcohols and
acids, and differ from the alcohols in having two less
hydrogen atoms in the molecule, as common aldehyde
(called also acetaldehyde, acetic aldehyde or
ethyl aldehyde), C2H4O; methyl aldehyde (called
also formaldehyde), CH2O.
[1913 Webster +PJC]
Aldehyde ammonia (Chem.), a compound formed by the union of
aldehyde with ammonia.
[1913 Webster] |
acetic aldehyde
(gcide) | Aldehyde \Al"de*hyde\ ([a^]l"d[-e]*h[imac]d), n. [Abbrev. fr.
alcohol dehydrogenatum, alcohol deprived of its hydrogen.]
1. (Chem.) A colorless, mobile, and very volatile liquid
obtained from alcohol by certain processes of oxidation.
[1913 Webster]
2. (Chem.) Any compound having the group -CHO. Methyl
aldehyde, the simplest aldehyde, is more commonly called
formaldehyde, H-CHO, and acetic aldehyde is now more
commonly called acetaldehyde. The higher aldehydes may
be solids. A reducing sugar typically contains the
aldehyde group.
[PJC]
Note: The aldehydes are intermediate between the alcohols and
acids, and differ from the alcohols in having two less
hydrogen atoms in the molecule, as common aldehyde
(called also acetaldehyde, acetic aldehyde or
ethyl aldehyde), C2H4O; methyl aldehyde (called
also formaldehyde), CH2O.
[1913 Webster +PJC]
Aldehyde ammonia (Chem.), a compound formed by the union of
aldehyde with ammonia.
[1913 Webster] |
Aldehyde ammonia
(gcide) | Aldehyde \Al"de*hyde\ ([a^]l"d[-e]*h[imac]d), n. [Abbrev. fr.
alcohol dehydrogenatum, alcohol deprived of its hydrogen.]
1. (Chem.) A colorless, mobile, and very volatile liquid
obtained from alcohol by certain processes of oxidation.
[1913 Webster]
2. (Chem.) Any compound having the group -CHO. Methyl
aldehyde, the simplest aldehyde, is more commonly called
formaldehyde, H-CHO, and acetic aldehyde is now more
commonly called acetaldehyde. The higher aldehydes may
be solids. A reducing sugar typically contains the
aldehyde group.
[PJC]
Note: The aldehydes are intermediate between the alcohols and
acids, and differ from the alcohols in having two less
hydrogen atoms in the molecule, as common aldehyde
(called also acetaldehyde, acetic aldehyde or
ethyl aldehyde), C2H4O; methyl aldehyde (called
also formaldehyde), CH2O.
[1913 Webster +PJC]
Aldehyde ammonia (Chem.), a compound formed by the union of
aldehyde with ammonia.
[1913 Webster] |
aldehyde green
(gcide) | Green \Green\ (gr[=e]n), n.
1. The color of growing plants; the color of the solar
spectrum intermediate between the yellow and the blue.
[1913 Webster]
2. A grassy plain or plat; a piece of ground covered with
verdant herbage; as, the village green.
[1913 Webster]
O'er the smooth enameled green. --Milton.
[1913 Webster]
3. Fresh leaves or branches of trees or other plants;
wreaths; -- usually in the plural.
[1913 Webster]
In that soft season when descending showers
Call forth the greens, and wake the rising flowers.
--Pope.
[1913 Webster]
4. pl. Leaves and stems of young plants, as spinach, beets,
etc., which in their green state are boiled for food.
[1913 Webster]
5. Any substance or pigment of a green color.
[1913 Webster]
Alkali green (Chem.), an alkali salt of a sulphonic acid
derivative of a complex aniline dye, resembling emerald
green; -- called also Helvetia green.
Berlin green. (Chem.) See under Berlin.
Brilliant green (Chem.), a complex aniline dye, resembling
emerald green in composition.
Brunswick green, an oxychloride of copper.
Chrome green. See under Chrome.
Emerald green. (Chem.)
(a) A complex basic derivative of aniline produced as a
metallic, green crystalline substance, and used for
dyeing silk, wool, and mordanted vegetable fiber a
brilliant green; -- called also aldehyde green,
acid green, malachite green, Victoria green,
solid green, etc. It is usually found as a double
chloride, with zinc chloride, or as an oxalate.
(b) See Paris green (below).
Gaignet's green (Chem.) a green pigment employed by the
French artist, Adrian Gusgnet, and consisting essentially
of a basic hydrate of chromium.
Methyl green (Chem.), an artificial rosaniline dyestuff,
obtained as a green substance having a brilliant yellow
luster; -- called also light-green.
Mineral green. See under Mineral.
Mountain green. See Green earth, under Green, a.
Paris green (Chem.), a poisonous green powder, consisting
of a mixture of several double salts of the acetate and
arsenite of copper. It has found very extensive use as a
pigment for wall paper, artificial flowers, etc., but
particularly as an exterminator of insects, as the potato
bug; -- called also Schweinfurth green, {imperial
green}, Vienna green, emerald qreen, and {mitis
green}.
Scheele's green (Chem.), a green pigment, consisting
essentially of a hydrous arsenite of copper; -- called
also Swedish green. It may enter into various pigments
called parrot green, pickel green, Brunswick green,
nereid green, or emerald green.
[1913 Webster] |
Benzoic aldehyde
(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] |
cuminic aldehyde
(gcide) | Cuminol \Cu"mi*nol\ (-n?l), n. [Cuminic + L. oleum.]
A liquid, C3H7.C6H4.CHO, obtained from oil of caraway; --
called also cuminic aldehyde.
[1913 Webster] |
ethyl aldehyde
(gcide) | Aldehyde \Al"de*hyde\ ([a^]l"d[-e]*h[imac]d), n. [Abbrev. fr.
alcohol dehydrogenatum, alcohol deprived of its hydrogen.]
1. (Chem.) A colorless, mobile, and very volatile liquid
obtained from alcohol by certain processes of oxidation.
[1913 Webster]
2. (Chem.) Any compound having the group -CHO. Methyl
aldehyde, the simplest aldehyde, is more commonly called
formaldehyde, H-CHO, and acetic aldehyde is now more
commonly called acetaldehyde. The higher aldehydes may
be solids. A reducing sugar typically contains the
aldehyde group.
[PJC]
Note: The aldehydes are intermediate between the alcohols and
acids, and differ from the alcohols in having two less
hydrogen atoms in the molecule, as common aldehyde
(called also acetaldehyde, acetic aldehyde or
ethyl aldehyde), C2H4O; methyl aldehyde (called
also formaldehyde), CH2O.
[1913 Webster +PJC]
Aldehyde ammonia (Chem.), a compound formed by the union of
aldehyde with ammonia.
[1913 Webster]Ethyl \Eth"yl\, n. [Ether + -yl.] (Chem.)
A monatomic, hydrocarbon radical, C2H5 of the paraffin
series, forming the essential radical of ethane, and of
common alcohol and ether.
[1913 Webster]
Ethyl aldehyde. (Chem.) See Aldehyde.
[1913 Webster] |
Ethyl aldehyde
(gcide) | Aldehyde \Al"de*hyde\ ([a^]l"d[-e]*h[imac]d), n. [Abbrev. fr.
alcohol dehydrogenatum, alcohol deprived of its hydrogen.]
1. (Chem.) A colorless, mobile, and very volatile liquid
obtained from alcohol by certain processes of oxidation.
[1913 Webster]
2. (Chem.) Any compound having the group -CHO. Methyl
aldehyde, the simplest aldehyde, is more commonly called
formaldehyde, H-CHO, and acetic aldehyde is now more
commonly called acetaldehyde. The higher aldehydes may
be solids. A reducing sugar typically contains the
aldehyde group.
[PJC]
Note: The aldehydes are intermediate between the alcohols and
acids, and differ from the alcohols in having two less
hydrogen atoms in the molecule, as common aldehyde
(called also acetaldehyde, acetic aldehyde or
ethyl aldehyde), C2H4O; methyl aldehyde (called
also formaldehyde), CH2O.
[1913 Webster +PJC]
Aldehyde ammonia (Chem.), a compound formed by the union of
aldehyde with ammonia.
[1913 Webster]Ethyl \Eth"yl\, n. [Ether + -yl.] (Chem.)
A monatomic, hydrocarbon radical, C2H5 of the paraffin
series, forming the essential radical of ethane, and of
common alcohol and ether.
[1913 Webster]
Ethyl aldehyde. (Chem.) See Aldehyde.
[1913 Webster] |
Formaldehyde
(gcide) | Formaldehyde \For*mal"de*hyde\, n. [Formic + aldehyde.] (Chem.)
A colorless, volatile liquid, H2CO, resembling acetic or
ethyl aldehyde, and chemically intermediate between methyl
alcohol and formic acid.
[1913 Webster]Aldehyde \Al"de*hyde\ ([a^]l"d[-e]*h[imac]d), n. [Abbrev. fr.
alcohol dehydrogenatum, alcohol deprived of its hydrogen.]
1. (Chem.) A colorless, mobile, and very volatile liquid
obtained from alcohol by certain processes of oxidation.
[1913 Webster]
2. (Chem.) Any compound having the group -CHO. Methyl
aldehyde, the simplest aldehyde, is more commonly called
formaldehyde, H-CHO, and acetic aldehyde is now more
commonly called acetaldehyde. The higher aldehydes may
be solids. A reducing sugar typically contains the
aldehyde group.
[PJC]
Note: The aldehydes are intermediate between the alcohols and
acids, and differ from the alcohols in having two less
hydrogen atoms in the molecule, as common aldehyde
(called also acetaldehyde, acetic aldehyde or
ethyl aldehyde), C2H4O; methyl aldehyde (called
also formaldehyde), CH2O.
[1913 Webster +PJC]
Aldehyde ammonia (Chem.), a compound formed by the union of
aldehyde with ammonia.
[1913 Webster] |
formaldehyde
(gcide) | Formaldehyde \For*mal"de*hyde\, n. [Formic + aldehyde.] (Chem.)
A colorless, volatile liquid, H2CO, resembling acetic or
ethyl aldehyde, and chemically intermediate between methyl
alcohol and formic acid.
[1913 Webster]Aldehyde \Al"de*hyde\ ([a^]l"d[-e]*h[imac]d), n. [Abbrev. fr.
alcohol dehydrogenatum, alcohol deprived of its hydrogen.]
1. (Chem.) A colorless, mobile, and very volatile liquid
obtained from alcohol by certain processes of oxidation.
[1913 Webster]
2. (Chem.) Any compound having the group -CHO. Methyl
aldehyde, the simplest aldehyde, is more commonly called
formaldehyde, H-CHO, and acetic aldehyde is now more
commonly called acetaldehyde. The higher aldehydes may
be solids. A reducing sugar typically contains the
aldehyde group.
[PJC]
Note: The aldehydes are intermediate between the alcohols and
acids, and differ from the alcohols in having two less
hydrogen atoms in the molecule, as common aldehyde
(called also acetaldehyde, acetic aldehyde or
ethyl aldehyde), C2H4O; methyl aldehyde (called
also formaldehyde), CH2O.
[1913 Webster +PJC]
Aldehyde ammonia (Chem.), a compound formed by the union of
aldehyde with ammonia.
[1913 Webster] |
melamine-fromaldehyde methanal resin
(gcide) | melamine resin \melamine resin\ melamine-fromaldehyde methanal
resin \melamine-fromaldehyde methanal resin\ n.
A thermosetting plastic formed by the reaction of melamine
and formaldehyde. It is used for molding and for preparing
laminated sheets used to surface counter tops, walls, and
furniture. The commercially marketed Formica (TM) is one
type of melamine resin.
[PJC] |
Metaldehyde
(gcide) | Metaldehyde \Me*tal"de*hyde\, n. [Pref. met- + aldehyde.]
(Chem.)
A white crystalline substance isomeric with, and obtained
from, acetic aldehyde by polymerization, and reconvertible
into the same.
[1913 Webster] |
oenanthaldehyde
(gcide) | oenanthol \oe*nan"thol\, n. [oenanthylic + L. oleum oil.]
(Chem.)
An oily substance (C6H15.CHO) obtained by the distillation
of castor oil, recognized as the aldehyde of oenanthylic
acid, and hence called also oenanthaldehyde.
[1913 Webster] |
Oxaldehyde
(gcide) | Oxaldehyde \Ox*al"de*hyde\, n. [Oxalic + aldehyde.] (Chem.)
Same as Glyoxal.
[1913 Webster] |
paraformaldehyde
(gcide) | paraformaldehyde \par`a*form*al"de*hyde\, n. [Pref. para- +
formaldehyde.] (Chem.)
A polymer of formaldehyde obtained as a white crystalline
substance by concentration of a formaldehyde solution.
Formula (CH20)n. It dissolves in hot water with the release
of formaldehyde, and is used as a disinfectant.
[1913 Webster +PJC] |
Paraldehyde
(gcide) | Paraldehyde \Par*al"de*hyde\, n. [Pref. para- + aldehyde.]
(Chem.)
A trimer of acetaldehyde (C6H12O3), prepared by
polymerization of acetaldehyde with hydrochloric and sulfuric
acids. It has sedative and hypnotic properties. --MI11
[PJC] |
Phenol aldehyde
(gcide) | Phenol \Phe"nol\ (f[=e]"n[=o]l; 277), n. [Gr. fai`nein to show +
-ol: cf. F. ph['e]nol.] (Chem.)
1. A white or pinkish crystalline substance, C6H5OH,
produced by the destructive distillation of many organic
bodies, as wood, coal, etc., and obtained from the heavy
oil from coal tar.
[1913 Webster]
Note: It has a peculiar odor, somewhat resembling creosote,
which is a complex mixture of phenol derivatives. It is
of the type of alcohols, and is called also {phenyl
alcohol}, but has acid properties, and hence is
popularly called carbolic acid, and was formerly
called phenic acid. It is a powerful caustic poison,
and in dilute solution has been used as an antiseptic.
[1913 Webster]
2. Any one of the series of hydroxyl derivatives of which
phenol proper is the type.
[1913 Webster]
Glacial phenol (Chem.), pure crystallized phenol or
carbolic acid.
Phenol acid (Chem.), any one of a series of compounds which
are at once a derivative of phenol and an organic acid;
thus, salicylic acid is a phenol acid.
Phenol alcohol (Chem.), any one of series of derivatives of
phenol and carbinol which have the properties of both
combined; thus, saligenin is a phenol alcohol.
Phenol aldehyde (Chem.), any one of a series of compounds
having both phenol and aldehyde properties.
Phenol phthalein. See phenolphthalein.
[1913 Webster] |
retinaldehyde
(gcide) | Retinal \Ret"i*nal\, n. (Chem.)
A retinoid compound (C20H28O), closely related to vitamin
A, which is a component of the visual pigments in the eye. It
is also called retinaldehyde and vitamin A aldehyde.
[PJC] |
salicylic aldehyde
(gcide) | Salicylal \Sal"i*cyl`al\, n. [Salicylic + aldehide.] (Chem.)
A thin, fragrant, colorless oil, HO.C6H4.CHO, found in the
flowers of meadow sweet (Spiraea), and also obtained by
oxidation of salicin, saligenin, etc. It reddens on exposure.
Called also salicylol, salicylic aldehyde, and formerly
salicylous acid or spiroylous acid.
[1913 Webster] |
vitamin A aldehyde
(gcide) | Retinal \Ret"i*nal\, n. (Chem.)
A retinoid compound (C20H28O), closely related to vitamin
A, which is a component of the visual pigments in the eye. It
is also called retinaldehyde and vitamin A aldehyde.
[PJC] |
acetaldehyde
(wn) | acetaldehyde
n 1: a colorless volatile water-soluble liquid aldehyde used
chiefly in the manufacture of acetic acid and perfumes and
drugs [syn: acetaldehyde, ethanal] |
aldehyde
(wn) | aldehyde
n 1: any of a class of highly reactive chemical compounds; used
in making resins and dyes and organic acids |
aldehyde group
(wn) | aldehyde group
n 1: the chemical group -CHO [syn: aldehyde group, {aldehyde
radical}] |
aldehyde radical
(wn) | aldehyde radical
n 1: the chemical group -CHO [syn: aldehyde group, {aldehyde
radical}] |
aldehyde-alcohol
(wn) | aldehyde-alcohol
n 1: an oily colorless liquid obtained by the condensation of
two molecules of acetaldehyde; contains an alcohol group
(-OH) and an aldehyde group (-CHO) [syn: aldol,
aldehyde-alcohol] |
formaldehyde
(wn) | formaldehyde
n 1: a colorless poisonous gas; made by the oxidation of
methanol [syn: formaldehyde, methanal] |
furfuraldehyde
(wn) | furfuraldehyde
n 1: a liquid aldehyde with a penetrating odor; made from plant
hulls and corncobs; used in making furan and as a solvent
[syn: furfural, furfuraldehyde] |
glyceraldehyde
(wn) | glyceraldehyde
n 1: a sweet crystalline aldehyde formed by the breakdown of
sugars [syn: glyceraldehyde, glyceric aldehyde] |
glyceric aldehyde
(wn) | glyceric aldehyde
n 1: a sweet crystalline aldehyde formed by the breakdown of
sugars [syn: glyceraldehyde, glyceric aldehyde] |
paraldehyde
(wn) | paraldehyde
n 1: a colorless liquid (a cyclic trimer of acetaldehyde) that
is used as a sedative and a solvent [syn: paraldehyde,
ethanal trimer] |
polyvinyl-formaldehyde
(wn) | polyvinyl-formaldehyde
n 1: a polymer of vinyl formaldehyde |
propionaldehyde
(wn) | propionaldehyde
n 1: a colorless liquid aldehyde [syn: propanal,
propionaldehyde] |
urea-formaldehyde resin
(wn) | urea-formaldehyde resin
n 1: a clear thermosetting resin made from urea and formaldehyde
and used in electrical fittings, adhesives, and finishes |
|