Longman Dictionary of Contemporary English homepage

Date: 1500-1600
Language: Latin
Origin: , past participle of adulterare, from ad- 'to' + alter 'other'

adulterate

 verb
     
a‧dul‧ter‧ate [transitive]
to make food or drink less pure by adding another substance of lower quality to it [↪ unadulterated]
—adulteration noun [uncountable]
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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