Dictionary![]() ![]() pi•per•a•zinePronunciation: (pi-per'u-zēn", -zin, pī-, pip'ur-u-), [key] —n. Chem. 1. Also called pip•er•az•i•dine Pronunciation: (pip"u-raz'i-dēn", -din, pī"pu-). [key]a colorless, crystalline, deliquescent ring compound, C4H10N2, prepared by the reaction of ethylene bromide or ethylene chloride with ammonia: used chiefly in veterinary medicine as an anthelmintic, and as an insecticide. 2. any derivative of this compound. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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