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(ˌklɔr əˈpɪk rɪn, ˌkloʊr-)

also chlorpicrin

a poisonous liquid, CCl3NO2, used as an insecticide and fungicide and in chemical warfare.
[1885–90; chloro-2 + picr(ic acid) + -in1]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
Lachrymators (tear-producing agents) like chloroacetone (CA), xylyl bromide (white cross), and chloroacetophenone (CN), along with vomiting agents diphenylaminearsine (DM and adamsite) and chlorpicrin (PS) were used in hand grenades, mortar rounds, and artillery shells.