n.
Pronunciation: i- ' r ō -zh ə n
Function: noun
Date: 1541
1 a : the action or process of eroding b : the state of being eroded
2 : an instance or product of erosive action
– ero · sion · al \ - ' r ō zh-n ə l, - ' r ō -zh ə -n ə l \ adjective
– ero · sion · al · ly \ - ē \ adverb