irritant Definition in the Cambridge English Dictionary
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Definition of “irritant” - English Dictionary

Definition of "irritant" - American English Dictionary

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irritantnoun [C]

 us   /ˈɪr·ɪ·tənt/
a ​cause of an ​uncomfortablephysicalreaction: Especially in the ​spring, ​plantpollen is an irritant that makes the ​eyes and ​throatitchy and can ​causebreathingproblems.
(Definition of irritant from the Cambridge Academic Content Dictionary © Cambridge University Press)

Definition of "irritant" - British English Dictionary

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irritantnoun [C]

uk   /ˈɪr.ɪ.tənt/  us   /-t̬ənt/

irritant noun [C] (MAKING ANGRY)

something that ​causestrouble or makes you ​annoyed: The ​report is ​bound to ​add a new irritant to ​internationalrelations.

irritant noun [C] (MAKING SORE)

a ​substance that makes ​part of ​yourbodysore or ​painful: Pollen is an irritant, ​causingred and ​soreeyes in ​sensitivepeople.
(Definition of irritant from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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