Definition of lewisite in English:


Line breaks: lewis|ite
Pronunciation: /ˈluːɪsʌɪt


[mass noun]
  • A dark oily liquid producing an irritant gas that causes blisters, developed for use in chemical warfare.
    • An organic compound of arsenic; chemical formula: ClCHCHAsCl2
    More example sentences
    • This target list usually included sarin, soman, mustard, lewisite, cyclosarin, and fats, oils and wax to name a few.
    • Among the CW agents produced were phosgene, mustard, lewisite, hydrogen cyanide, and diphenyl cyanarsine.
    • The chemicals, confiscated from Hitler's Third Reich at the end of the second world war, were mustard gas, phosgene, tabun and lewisite, all of which can inflict appalling injuries.


1920s: named after Winford L. Lewis (1878–1943), American chemist.

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