Definition of “corrosion” - English Dictionary

british dictionary

“corrosion” in British English

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corrosionnoun [ U ]

uk /kəˈrəʊ.ʒən/ us /kəˈroʊ.ʒən/

the process of corroding, or metal that has been corroded:

There was a lot of corrosion on the bottom of the car.
figurative We are witnessing the corrosion of moral standards within our society.

(Definition of “corrosion” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)