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An oily, volatile liquid, C4H8Cl2S, that is corrosive to the skin and mucous membranes and causes severe, sometimes fatal respiratory damage. It was introduced in World War I as a chemical warfare agent.
[From its smell.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Elements & Compounds) an oily liquid vesicant compound used in chemical warfare. Its vapour causes blindness and burns. Formula: (ClCH2CH2)2S
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
an oily liquid, C4H8Cl2S, used, esp. in World War I, as a chemical-warfare gas for its irritating, blinding, and poisonous properties.
[1915–20; so called from its mustardlike odor]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Noun||1.||mustard gas - a toxic war gas with sulfide based compounds that raises blisters and attacks the eyes and lungs; there is no known antidote|
poison gas - a gas that is poisonous to breath or contact; used in chemical warfare
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