Medical Dictionary


noun py·raz·o·lone \-ˌlōn\

Definition of PYRAZOLONE

:  any of three isomeric carbonyl compounds C3H4N2O derived from pyrazoline
:  any of various derivatives of the pyrazolones some of which (as antipyrine) have been used as analgesics and antipyretics
April 01, 2015
diapause Hear it
a period of physiological dormancy
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