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corrosion (n.)

c. 1400, corrosioun, from Old French corrosion and directly from Latin corrosionem (nominative corrosio), noun of action from past-participle stem of corrodere "to gnaw to bits, wear away," from assimilated form of com-, here perhaps an intensive prefix (see com-), + rodere "to gnaw" (see rodent).

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Definitions of corrosion from WordNet

corrosion (n.)
a state of deterioration in metals caused by oxidation or chemical action;
corrosion (n.)
erosion by chemical action;
Synonyms: corroding / erosion
From wordnet.princeton.edu