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Definition of adulterate verb from the Oxford Advanced American Dictionary

 

adulterate

 verb
verb
NAmE//əˈdʌltəˌreɪt//
 
[often passive] adulterate something (with something)Verb Forms present simple I / you / we / they adulterate
 
he / she / it adulterates
 
past simple adulterated
 
-ing form adulterating
 
 
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to make something, such as food or drink, less pure by adding another substance to it synonym contaminate The water supply had been adulterated with chemicals from the soil. see unadulterated
adulteration
 
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NAmE//əˌdʌltəˈreɪʃn//
 
noun [uncountable]
See adulterate in the Oxford Advanced Learner's Dictionary