urticant


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Related to urticant: ricin

ur·ti·cant

 (ûr′tĭ-kənt)
adj.
Causing itching or stinging.
n.
A substance that causes itching or stinging.

urticant

(ˈɜːtɪkənt)
adj
(Pathology) causing a stinging or itching sensation
n
(Pathology) a thing that causes a stinging or itching sensation