Meaning of “adulterate” in the English Dictionary

"adulterate" in British English

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adulterateverb [ T usually passive ]

uk /əˈdʌl.tə.reɪt/ us /əˈdʌl.tə.reɪt/
adulterated
adjective uk /əˈdʌl.tə.reɪ.tɪd/ us /əˈdʌl.tə.reɪ.t̬ɪd/

adulterated drugs/food
adulteration
noun [ U ] uk /əˌdʌl.təˈreɪ.ʃən/ us /əˌdʌl.təˈreɪ.ʃən/

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

"adulterate" in American English

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adulterateverb [ T ]

us /əˈdʌl·təˌreɪt/

to make something weaker or of worse quality by adding something else to it:

Saffron is very expensive, and is often adulterated with other plants.

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