Methenyl \Meth"e*nyl\, n. [Methene + -yl.]
(Chem.)
The hypothetical hydrocarbon radical CH, regarded as an
essential residue of certain organic compounds.
Source: Webster's Revised Unabridged Dictionary (1913)
|
Azole \Az"ole\, n. [From Azote.]
(Org. Chem.)
Any of a large class of compounds characterized by a
five-membered ring which contains an atom of nitrogen and at
least one other noncarbon atom (nitrogen, oxygen, sulphur).
The prefixes furo-, thio, and pyrro- are used to distinguish
three subclasses of azoles, which may be regarded as derived
respectively from furfuran, thiophene, and pyrrol by
replacement of the CH group by nitrogen; as, furo-monazole.
Names exactly analogous to those for the azines are also
used; as, oxazole, diazole, etc.
Source: Webster's Revised Unabridged Dictionary (1913)
|
Tetrazine \Tet*raz"ine\, n. Also -in \-in\ . [Tetrazo- + -ine.]
(Chem.)
A hypothetical compound, C2H2N4 which may be regarded as
benzene with four CH groups replaced by nitrogen atoms;
also, any of various derivatives of the same. There are three
isomeric varieties.
Source: Webster's Revised Unabridged Dictionary (1913)
|
Tetrazole \Tet*raz"ole\, n. [Tetrazo- + -ole.]
(Org. Chem.)
A crystalline acid substance, CH2N4, which may be regarded
as pyrrol in which nitrogen atoms replace three CH groups;
also, any of various derivatives of the same.
Source: Webster's Revised Unabridged Dictionary (1913)
|