Etymology
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corrosive (adj.)

"destroying by or as if by corrosion," late 14c., from Old French corrosif (13c.), from corroder "to wear away" (see corrode). Related: Corrosively; corrosiveness.

updated on April 04, 2018

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Definitions of corrosive from WordNet
1
corrosive (adj.)
of a substance, especially a strong acid; capable of destroying or eating away by chemical action;
Synonyms: caustic / erosive / mordant
corrosive (adj.)
spitefully sarcastic;
corrosive cristism
2
corrosive (n.)
a substance having the tendency to cause corrosion (such a strong acids or alkali);
Etymologies are not definitions. From wordnet.princeton.edu, not affiliated with etymonline.