Definition of erosion noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//ɪˈrəʊʒn//
    ; NAmE NAmE//ɪˈroʊʒn//
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  1. 1the process by which the surface of something is gradually destroyed through the action of wind, rain, etc. the erosion of the coastline by the sea soil erosion
  2. 2the process of gradually destroying something or making it weaker over a period of time the erosion of her confidence
See the Oxford Advanced American Dictionary entry: erosion