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English definition of “irritant”

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irritant

noun [C] uk   /ˈɪr.ɪ.tənt/ us    /-t̬ənt/

irritant noun [C] (MAKING ANGRY)

something that causes trouble or makes you annoyed: The report is bound to add a new irritant to international relations.

irritant noun [C] (MAKING SORE)

a substance that makes part of your body sore or painful: Pollen is an irritant, causing red and sore eyes in sensitive people.
(Definition of irritant from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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