pyrazole

pyr·a·zole

[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

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Collins
World English Dictionary
pyrazole (ˈpaɪrəˌzəʊl) [Click for IPA pronunciation guide]
 
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
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00:10
Pyrazole is always a great word to know.
So is lollapalooza. Does it mean:
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
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.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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