| slovo | definícia |
C4H8
(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] |
C4H8
(gcide) | butene \butene\ n.
any of three isomeric singly unsaturated hydrocarbons C4H8;
all are used in making synthetic rubbers; -- called also
butylene.
[WordNet 1.5] |
C4H8
(gcide) | Butylene \Bu"ty*lene\, n. [From Butyl.]
1. (Chem.) Any one of three metameric hydrocarbons, C4H8,
of the ethylene series. They are gaseous or easily
liquefiable; -- called also butene.
[1913 Webster]
2. the hypothetical divalent radical -(CH2)4-; -- used in
combining forms; as, butylene diamine.
[PJC] |
| | podobné slovo | definícia |
C4H8N2O3H2O
(gcide) | Asparagine \As*par"a*gine\, n. [Cf. F. asparagine.] (Chem.)
A white, nitrogenous, crystallizable substance,
C4H8N2O3+H2O, found in many plants, and first obtained from
asparagus. It is believed to aid in the disposition of
nitrogenous matter throughout the plant; -- called also
altheine.
[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.] |
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