| slovo | definícia |
methylene
(encz) | methylene,metylén n: Zdeněk Brož |
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
(wn) | methylene
n 1: the bivalent radical CH2 derived from methane [syn:
methylene group, methylene radical, methylene] |
| | 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 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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