Definition of irritant noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˈɪrɪtənt//
    ; NAmE NAmE//ˈɪrɪtənt//
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  1. 1(specialist) a substance that makes part of your body sore chemical irritants
  2. 2something that makes you annoyed or causes trouble The presence of the army has been a constant irritant.

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