Advertisement

Advertisement

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
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Discover More

Word History and Origins

Origin of pyrazole1

First recorded in 1885–90; pyr- + azole
Discover More

Word History and Origins

Origin of pyrazole1

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

Example Sentences

Pyrrol yields an analogous series: pyrazole, imidazole or glyoxaline, azimide or osotriazole, triazole and tetrazole: Six-membered ring systems can be referred back, in a manner similar to the above, to pyrone, penthiophene and pyridine, the substances containing a ring of five carbon atoms, and an oxygen, sulphur and nitrogen atom respectively.

Advertisement

Advertisement

Advertisement

Advertisement


pyrazinamidepyrazoline