adulteration
🇺🇸
/əˌdʌltəˈreɪʃn/
🇬🇧
/əˌdʌltəˈreɪʃn/
The act of making something like food or drink less pure by adding other substances to it.
The food safety inspector discovered evidence of adulteration in the restaurant's ingredients.
食糧安全検査員はレストランの材料に汚染の証拠を発見しました。