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poison gas

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noun
any of various toxic gases, especially those used in chemical warfare to kill or incapacitate on inhalation or contact, as phosgene, chlorine, etc.
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Origin of poison gas

First recorded in 1910–15
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use poison gas in a sentence

British Dictionary definitions for poison gas

poison gas

noun
a gaseous substance, such as chlorine, phosgene, or lewisite, used in warfare to kill or harm
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

Medical definitions for poison gas

poison gas

n.
A gas or vapor used especially in chemical warfare to injure, disable, or kill upon inhalation or contact.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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