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poison gas

any of various toxic gases, especially those used in chemical warfare to kill or incapacitate on inhalation or contact, as phosgene, chlorine, etc.
Origin of poison gas
1910-15 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for poison-gas
Historical Examples
  • There was poison-gas and smoke-gas, terrible artillery, awful rifle-fire, and of course the rifle and bayonet.

  • I have said that it was about four oclock in the afternoon when we had our first experience of the poison-gas.

  • Just wait for the results of the poison-gas competition presumably.

  • Acid sprays and poison-gas of various kinds had been tried without appreciable effect.

  • To begin with, he did not believe in them; they were just a part of the poison-gas of war.

    Jimmie Higgins Upton Sinclair
  • In a word my cottage was filled with some kind of poison-gas!

British Dictionary definitions for poison-gas

poison gas

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
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poison-gas in Medicine

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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