'Vesicant' definitions:

Definition of 'vesicant'

From: WordNet
adjective
Causing blisters [syn: vesicatory, vesicant]
noun
A chemical agent that causes blistering (especially mustard gas) [syn: vesicant, vesicatory]

Definition of 'Vesicant'

From: GCIDE
  • Vesicant \Ves"i*cant\, n. [L. vesica blister: cf. F. v['e]sicant.] (Med.) A vesicatory. [1913 Webster]