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contamination noun

  /kənˌtæm.əˈneɪ.ʃən/ , /kənˌtæm.ɪˈneɪ.ʃən/ , /kənˌtæm.ɪˈnæɪ.ʃən/ , [kənˌɾ̃æm.əˈneɪ.ʃən]
  • The process of making a material or surface unclean or unsuited for its intended purpose, usually by the addition or attachment of undesirable foreign substances.
 汚染, コンタミネーション

contaminate

浸染
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