pyrazole

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 .

Origin:
1885–90; pyr- + azole

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To pyrazole
Collins
World English Dictionary
pyrazole (ˈpaɪrəˌzəʊl)
 
n
a crystalline soluble basic heterocyclic compound; 1,2-diazole. Formula: C3H4N2
 
[C19: from German, from pyrrole + inserted -az- (see azo-)]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Encyclopedia Britannica
Encyclopedia

pyrazole

any of a class of organic compounds of the heterocyclic series characterized by a ring structure composed of three carbon atoms and two nitrogen atoms in adjacent positions. The simplest member of the pyrazole family is pyrazole itself, a compound with molecular formula C3H4N2.

Learn more about pyrazole with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature