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erosion

Pronunciation: /ɪˈrəʊʒ(ə)n/

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Definition of erosion

noun

[mass noun]

the process of eroding or being eroded by wind, water, or other natural agents:the problem of soil erosion
the gradual destruction or diminution of something:the erosion of support for the party
Medicine the gradual destruction of tissue or tooth enamel by physical or chemical action: the total area of haemorrhagic erosion
[count noun] Medicine a place where surface tissue has been gradually destroyed:patients with gastric erosions