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chloropicrin

[klawr-uh-pik-rin, -pahy-krin, klohr-]
noun Chemistry, Military.
  1. a colorless, somewhat oily, water-insoluble, poisonous liquid, CCl3NO2, that causes lachrymation and headache: used as an insecticide, a fungicide, in organic synthesis, and as a war gas.
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Origin of chloropicrin

First recorded in 1885–90; chloro-2 + picr(ic acid) + -in2
Also called nitrochloroform.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for chloropicrin

chloropicrin

chlorpicrin (klɔːˈpɪkrɪn)

noun
  1. a colourless insoluble toxic lachrymatory liquid used as a pesticide and a tear gas; nitrotrichloromethane. Formula: CCl 3 NO 2
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Word Origin

C20: from chloro- + picro- + -in
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