lewisite

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lew·is·ite

(lū'i-sīt),
A toxic gas used in warfare. It is a vesicant, a lung irritant like mustard gas; a systemic poison entering the circulation through the lungs or skin, and a mitotic poison arresting mitosis in the metaphase; dimercaprol is the antidote.
[W. Lee Lewis]
Farlex Partner Medical Dictionary © Farlex 2012
An organoarsenic compound developed as a vesicating chemical weapon, and manufactured by the US and Japan; it causes chemical burns or blisters of the skin and mucosa—e.g., conjunctiva, lacrimation, and pulmonary irritation and erosion— and liver necrosis
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

Lew·i·site

(L) (lū'is-īt)
A chemical warfare vesicant (NATO Code L) that contains arsenic; developed near the end of World War I but produced mostly in Russia.

lew·is·ite

(lū'i-sīt)
A vesicant toxic gas used in warfare.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012