- a pale yellow, odorless compound, C2H2AsCl3, used as a blister gas in World War I.
Origin of lewisite
1920–25; named after Winford Lee Lewis (1878–1943), American chemist who developed it; see -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for lewisite
That fellow would get us with his Lewisite gas before we could discover and destroy him.
It contains a specimen of the deadliest poison ever known, 'Lewisite,' the product of an American scientist.
- a colourless oily poisonous liquid with an odour resembling that of geraniums, having a powerful vesicant action and used as a war gas; 1-chloro-2-dichloroarsinoethene. Formula: ClCH:CHAsCl 2
C20: named after W. L. Lewis (1878–1943), US chemist
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