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antihistamine
noun
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How to pronounce antihistamine:

Definition of antihistamine:

antihistamine (noun):
a substance that counteracts a poison
a medicine used to treat allergies and hypersensitive reactions and colds; works by counteracting the effects of histamine on a receptor site.
any of various compounds that counteract histamine in the body and that are used for treating allergic reactions (such as hay fever) and cold symptoms

Synonyms for antihistamine:

diphenhydramineantidotemedicinebenadrylcoricidindramaminemedicationserum

Other 5-syllable words like antihistamine

Here are some other common words that have 5 syllables, like antihistamine does.

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How many syllables in the word antigen?

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