[ pi-per-uh-zeen, -zin, pahy-, pip-er-uh- ]

  1. Also called pip·er·az·i·dine [pip-uh-raz-i-deen, -din, pahy-puh-]. /ˌpɪp əˈræz ɪˌdin, -dɪn, ˌpaɪ pə-/. 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.

Origin of piperazine

First recorded in 1885–90; from Latin piper pepper + azine

Words Nearby piperazine

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use piperazine in a sentence

British Dictionary definitions for piperazine


/ (pɪˈpɛrəˌziːn, -zɪn) /

  1. a white crystalline deliquescent heterocyclic nitrogen compound used as an insecticide, corrosion inhibitor, and veterinary anthelmintic. Formula: C 4 H 10 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

Scientific definitions for piperazine


[ pī-pĕrə-zēn′, pĭ- ]

  1. A colorless crystalline compound used as a hardener for epoxy resins, as an antihistamine, and as an agent for expelling or destroying parasitic intestinal worms. Piperazine belongs to the class of chemicals called pyrazines. Chemical formula: C4H10N2.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.