Meaning of “antihistamine” in the English Dictionary

british dictionary

"antihistamine" in British English

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antihistaminenoun [ C or U ]

uk /ˌæn.tiˈhɪs.tə.mɪn/ /ˌæn.tiˈhɪs.tə.miːn/ us /ˌæn.t̬iˈhɪs.tə.mɪn/ /ˌæn.t̬iˈhɪs.tə.miːn/

a type of drug that is used to treat medical conditions caused by an extreme reaction to particular substances:

Antihistamine is often used to treat hay fever and insect bites.

(Definition of “antihistamine” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"antihistamine" in American English

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antihistaminenoun [ C ]

us /ˌænt·iˈhɪs·təˌmin, ˌæn·tɑɪ-, -mən/

a drug taken to limit the bad effect of the body’s reaction to some substances:

I took an antihistamine for my runny nose.

(Definition of “antihistamine” from the Cambridge Academic Content Dictionary © Cambridge University Press)