| slovo | definícia |
methyle
(gcide) | Methyl \Meth"yl\, n. [See Methylene.] (Chem.)
A univalent hydrocarbon radical, CH3-, not existing alone
but regarded as an essential residue of methane, and
appearing as a component part of many derivatives; as, methyl
alcohol, methyl ether, methyl amine, etc. [Formerly written
also methule, methyle, etc.]
[1913 Webster]
Methyl alcohol (Chem.), a light, volatile, inflammable
liquid, CH3.OH, obtained by the distillation of wood,
and hence called wood alcohol or wood spirit;
tecnically referred to as methanol; -- called also
methol, carbinol, etc.
Methyl amine (Chem.), a colorless, inflammable, alkaline
gas, CH3.NH2, having an ammoniacal, fishy odor. It is
produced artificially, and also occurs naturally in
herring brine and other fishy products. It is regarded as
ammonia in which a third of its hydrogen is replaced by
methyl, and is a type of the class of substituted
ammonias.
Methyl ether (Chem.), a light, volatile ether CH3.O.CH3,
obtained by the etherification of methyl alcohol; --
called also methyl oxide or dimethyl ether.
Methyl green. (Chem.) See under Green, n.
Methyl orange. (Chem.) See Helianthin.
Methyl violet (Chem.), an artificial dye, consisting of
certain methyl halogen derivatives of rosaniline.
[1913 Webster] |
| | podobné slovo | definícia |
hexamethylene
(encz) | hexamethylene,hexametylen [eko.] RNDr. Pavel Piskač |
methylene
(encz) | methylene,metylén n: Zdeněk Brož |
methylene blue
(encz) | methylene blue, n: |
methylene chloride
(encz) | methylene chloride,metylenchlorid [eko.] RNDr. Pavel Piskač |
methylene group
(encz) | methylene group, n: |
methylene radical
(encz) | methylene radical, n: |
methylenedioxymethamphetamine
(encz) | methylenedioxymethamphetamine, n: |
pentamethylenetetrazol
(encz) | pentamethylenetetrazol, n: |
Methylene
(gcide) | Methylene \Meth"yl*ene\, n. [F. m['e]thyl[`e]ne, from Gr. ? wine
+ ? wood; -- a word coined to correspond to the name wood
spirit.] (Chem.)
A divalent hydrocarbon radical, -CH2-, not known in the
free state, but regarded as an essential residue and
component of certain derivatives of methane; as, methylene
bromide, CH2Br2; -- formerly called also methene.
[1913 Webster]
Methylene blue (Chem.), an artificial dyestuff consisting
of a complex sulphur derivative of diphenyl amine; --
called also pure blue.
[1913 Webster] |
Methylene blue
(gcide) | Methylene \Meth"yl*ene\, n. [F. m['e]thyl[`e]ne, from Gr. ? wine
+ ? wood; -- a word coined to correspond to the name wood
spirit.] (Chem.)
A divalent hydrocarbon radical, -CH2-, not known in the
free state, but regarded as an essential residue and
component of certain derivatives of methane; as, methylene
bromide, CH2Br2; -- formerly called also methene.
[1913 Webster]
Methylene blue (Chem.), an artificial dyestuff consisting
of a complex sulphur derivative of diphenyl amine; --
called also pure blue.
[1913 Webster] |
methylenedioxymethamphetamine
(gcide) | methylenedioxymethamphetamine \methylenedioxymethamphetamine\ n.
a drug designed to have the effects of amphetamines but to
avoid the drug laws, but now a controlled substance. Called
also MDMA.
Syn: MDMA, Adam, ecstasy.
[WordNet 1.5] |
methylenesuccynic acid
(gcide) | itaconic acid \it`a*con"ic ac"id\, n. (Chem.)
The unsaturated dicarboxylic acid CH2=C(COOH)CH2.COOH, also
called methylenesuccynic acid and {propylene dicarboxylic
acid}.
[PJC] |
Oxymethylene
(gcide) | Oxymethylene \Ox`y*meth"yl*ene\, n. [Oxy
(a) + methylene.] (Chem.) Formic aldehyde, regarded as a
methylene derivative.
[1913 Webster] |
Pentamethylene
(gcide) | Pentamethylene \Pen`ta*meth"yl*ene\, n. [Penta- + methylene.]
(Chem.)
A hypothetical hydrocarbon, C5H10, metameric with the
amylenes, and the nucleus of a large number of derivatives;
-- so named because regarded as composed of five methylene
residues. Cf. Trimethylene, and Tetramethylene.
[1913 Webster] |
pentamethylene diamine
(gcide) | Cadaverine \Ca*dav"er*ine\, n. Also Cadaverin \Ca*dav"er*in\ .
[From Cadaver and amine.] (Chem.)
A sirupy, nontoxic ptomaine, H2N.(CH2)5.NH2 (chemically
pentamethylene diamine), formed in putrefaction of flesh,
etc.
[Webster 1913 Suppl. +PJC] |
Tetramethylene
(gcide) | Tetramethylene \Tet`ra*meth"yl*ene\, n. [Tetra- + methylene.]
(Chem.)
(a) A hypothetical hydrocarbon, C4H8, analogous to
trimethylene, and regarded as the base of well-known
series or derivatives.
(b) Sometimes, an isomeric radical used to designate certain
compounds which are really related to butylene.
[1913 Webster] |
Trimethylene
(gcide) | Trimethylene \Tri*meth"yl*ene\, n. (Chem.)
A gaseous hydrocarbon, C3H6, isomeric with propylene and
obtained from it indirectly. It is the base of a series of
compounds analogous to the aromatic hydrocarbons. |
methylene
(wn) | methylene
n 1: the bivalent radical CH2 derived from methane [syn:
methylene group, methylene radical, methylene] |
methylene blue
(wn) | methylene blue
n 1: a dark green dye used as a stain, an antiseptic, a chemical
indicator, and an antidote in cyanide poisoning [syn:
methylene blue, methylthionine chloride] |
methylene chloride
(wn) | methylene chloride
n 1: a nonflammable liquid used as a solvent and paint remover
and refrigerant [syn: methylene chloride,
dichloromethane] |
methylene group
(wn) | methylene group
n 1: the bivalent radical CH2 derived from methane [syn:
methylene group, methylene radical, methylene] |
methylene radical
(wn) | methylene radical
n 1: the bivalent radical CH2 derived from methane [syn:
methylene group, methylene radical, methylene] |
methylenedioxymethamphetamine
(wn) | methylenedioxymethamphetamine
n 1: a stimulant drug that is chemically related to mescaline
and amphetamine and is used illicitly for its euphoric and
hallucinogenic effects; it was formerly used in
psychotherapy but in 1985 it was declared illegal in the
United States; "MDMA is often used at parties because it
enables partygoers to remain active for long periods of
time" [syn: methylenedioxymethamphetamine, MDMA] |
pentamethylenetetrazol
(wn) | pentamethylenetetrazol
n 1: a drug used as a circulatory and respiratory stimulant;
larger doses cause convulsions in shock therapy; Metrazol
is a trademark [syn: pentylenetetrazol,
pentamethylenetetrazol, Metrazol] |
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