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corrode

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verb British English pronunciation: corrode /kəˈrəʊd/ 
Word Forms
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present tense
I/you/we/theycorrode
he/she/itcorrodes
present participlecorroding
past tensecorroded
past participlecorroded
  1. 1
    [intransitive/transitive] chemistry if metal or another substance corrodes, or if something corrodes it, it is gradually destroyed by a chemical reaction

    Acid rain poisons fish, destroys forests, and corrodes buildings.

    The metal structure is corroding badly and needs to be replaced.

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