vesicant

[ves-i-kuhnt]

ves·i·cant

[ves-i-kuhnt]
adjective
1.
producing a blister or blisters, as a medicinal substance; vesicating.
noun
2.
a vesicant agent or substance.
3.
(in chemical warfare) a chemical agent that causes burns and destruction of tissue both internally and externally.

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Vesicant is always a great word to know.
So is quincunx. Does it mean:
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.

Origin:
1655–65; < Neo-Latin vēsīcant- (stem of vēsīcāns), present participle of vēsīcāre to vesicate; see -ant
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Collins
World English Dictionary
vesicant or vesicatory (ˈvɛsɪkənt, ˈvɛsɪˌkeɪtərɪ)
 
n , pl -cants, -catories
1.  any substance that causes blisters, used in medicine and in chemical warfare
 
adj
2.  acting as a vesicant
 
[C19: see vesica]
 
vesicatory or vesicatory
 
n
 
adj
 
[C19: see vesica]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

vesicant ves·i·cant (věs'ĭ-kənt)
n.
A blistering agent, especially mustard gas, used in chemical warfare. adj.
Causing blisters.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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