UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/əˌdʌltəˈreɪʃən/US:USA pronunciation: respellingUSA pronunciation: respelling(ə dul′tə rāshən)

WordReference Random House Unabridged Dictionary of American English © 2020
a•dul•ter•a•tion  (ə dul′tə rāshən),USA pronunciation n. 
  1. the act or process of adulterating.
  2. the state of being adulterated.
  3. something adulterated.
  • Latin adulterātiōn- (stem of adulterātiō); see adulterate, -ion
  • 1500–10

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