(n) a drug used as a circulatory and respiratory stimulant; larger doses cause convulsions in shock therapy; Metrazol is a trademark, Syn.Metrazol, pentamethylenetetrazol
The Collaborative International Dictionary of English (GCIDE) v.0.53
a. [ Tetra- + azo-. ] (Chem.) A combining form (also used adjectively), designating any one of a series of double derivatives of the azo and diazo compounds containing four atoms of nitrogen. [ 1913 Webster ]
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. ]
n. (Chem.) Any one of a certain series of basic compounds containing a chain of four nitrogen atoms; for example, ethyl tetrazone, (C2H5)2N.N2.N(C2H5)2, a colorless liquid having an odor of leeks. [ 1913 Webster ]
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