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

allergen

noun

/ˈælədʒən/

/ˈælərdʒən/

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a substance that causes an allergyTopics Health problemsc2
Word Originearly 20th cent.: blend of allergy and -gen.

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See allergen in the Oxford Advanced American DictionarySee allergen in the Oxford Learner's Dictionary of Academic English

Check pronunciation: allergen

Nearby words

noun

From the Topic

C2

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