1 definition found From The Collaborative International Dictionary of English v.0.44 [gcide]: Tetrazole \Tet*raz"ole\, noun [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.]

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