adamsite

[ad-uhm-zahyt]

ad·ams·ite

[ad-uhm-zahyt]
noun Chemistry, Military.
a yellow irritant smoke, containing a poisonous form of arsenic and used as a harassing agent.


Origin:
1920–25; named after R. Adams; see -ite1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Adamsite is always a great word to know.
So is atomic. Does it mean:
a salt of hydrofluoric acid consisting of fluorine, as sodium fluoride, NaF, or a compound containing fluorine, as methyl fluoride, CH3F
existing as free, uncombined atoms
Collins
World English Dictionary
adamsite (ˈædəmˌzaɪt)
 
n
Also called: phenarsazine chloride a yellow poisonous crystalline solid that readily sublimes; diphenylaminechlorarsine. It is used in chemical warfare as a vomiting agent. Formula: C6H4AsClNHC6H4; relative density: 1.65; melting pt: 195°C; boiling pt: 410°C
 
[C20: named after Roger Adams (1899--1971), American chemist]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Encyclopedia Britannica
Encyclopedia

adamsite

in chemical warfare, sneeze gas developed by the United States and used during World War I. Adamsite is an arsenical diphenylaminechlorarsine and an odourless crystalline organic compound employed in vaporous form as a lung irritant. It appears as a yellow smoke that irritates eyes, lungs, and mucous membranes and causes sneezing, vomiting, and acute discomfort in the nose, throat, and chest. Eventually severe nausea develops, with headache, general physical weakness, and despondency. The effect usually lasts about 12 hours. The only protection against inhaling the gas is a good mechanical filter

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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