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  1. adulterate
  2. verb

    • 1. render (something) poorer in quality by adding another substance:

      the brewer is said to adulterate his beer

    adjective

    • 1. not pure or genuine:

      adulterate remedies
  3. Variation

    • v.: verb: adulterate, 3rd person present: adulterates, gerund or present participle: adulterating, past tense: adulterated, past participle: adulterated