Also found in: Thesaurus, Medical, Financial, Encyclopedia, Wikipedia.


A blistering agent, especially mustard gas, used in chemical warfare.
Causing blisters.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈvɛsɪkənt) or


n, pl -cants or -catories
(Elements & Compounds) any substance that causes blisters, used in medicine and in chemical warfare
(Chemistry) acting as a vesicant
[C19: see vesica]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈvɛs ɪ kənt)

1. producing a blister or blisters, as a medicinal substance.
2. a chemical agent that causes burns and destruction of tissue.
[1655–65; < New Latin vēsīcant-, s. of vēsīcāns, present participle of vēsīcāre to raise blisters, derivative of Latin vēsīca bladder, blister]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.vesicant - a chemical agent that causes blistering (especially mustard gas)
chemical agent - an agent that produces chemical reactions
blistering agent, dichloroethyl sulfide, mustard agent, mustard gas, sulfur mustard - a toxic war gas with sulfide based compounds that raises blisters and attacks the eyes and lungs; there is no known antidote
Adj.1.vesicant - causing blisters
noxious - injurious to physical or mental health; "noxious chemical wastes"; "noxious ideas"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
"When they gave the child the vesicant, it didn't go into the vein and it burned the back of his hand in a big circular fashion."
Two independent chemical weapons experts agreed the injuries seen were consistent with a chemical attack, with symptoms pointing to vesicant or blister agents.
His victory also served as a vindication after he suffered an early exit from the competition two years ago, after when misspelling 'vesicant.' Ironically, he said vesicant, a chemical agent that causes burns and destruction of skin tissue, became one of his favourite words later.
This rove beetle neither bites or stings, but accidental brushing against or crushing the beetle on the skin on contact provokes the release of its fluid, which contains paederin, a potent vesicant. Diffuse erythematous and desquamative lesions, which predominantly occur on the upper body and face have been reported.
Distributed in 0.75-ounce tubes, the M5 vesicant agent protective ointment was part of Army medical kits until 1969.
Folklore: The latex of this plant possesses vesicant, wormicidal and purgative properties.
(6(pp204-212)) In addition to being a vesicant, sulfur mustard is also an alkylating agent.
Until recently, intralesional and systemic corticosteroids, which were the mainstay of treatment in cancer chemotherapy, has been proven efficacious for life-threatening hemangioma but also has limited use due to the strong vesicant qualities of the drug, with need for central line access for chronic administration as well as potential peripheral mixed sensory-motor neurotoxicity.
in an old-fashioned ship of the line, the lowest of the decks on which guns are placed") (67); luizyt (Engl.: lewisite = "colorless or brown vesicant liquid ...
It is a potent vesicant, which is a substance that can cause tissue blistering or necrosis with extra-vasation.
Vesicant gases are strong alkylating agents, and they have cytostatic, mutagenic, and cytotoxic effects.