pyrazole

[ pir-uh-zohl, -zawl ]

noun

, Chemistry.

1. any of the group of heterocyclic compounds containing three carbon atoms, two adjacent nitrogen atoms, and two double bonds in the ring.
2. the parent compound, C 3 H 4 N 2 .

pyrazole

/ ˈpaɪrəˌzəʊl /

noun

1. a crystalline soluble basic heterocyclic compound; 1,2-diazole. Formula: C 3 H 4 N 2

Word History and Origins

Origin of pyrazole¹

First recorded in 1885–90; pyr- + azole

Word History and Origins

Origin of pyrazole¹

C19: from German, from pyrrole + inserted -az- (see azo- )