Found 1 items, similar to ch.
English → English (gcide) Definition: CH Methenyl \Meth"e*nyl\, n. [Methene + -yl.] (Chem.) The hypothetical hydrocarbon radical CH, regarded as an essential residue of certain organic compounds. [1913 Webster] 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. [Webster 1913 Suppl.] 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. [Webster 1913 Suppl.] 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. [Webster 1913 Suppl.]