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abrasion (n.)

1650s, "act of abrading," from Medieval Latin abrasionem (nominative abrasio) "a scraping," noun of action from past-participle stem of Latin abradere "to scrape away, shave off," from ab "off" (see ab-) + radere "to scrape," possibly from an extended form of PIE root *red- "to scrape, scratch, gnaw." From 1740 as "result of abrasion."

Origin and meaning of abrasion

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Definitions of abrasion from WordNet

abrasion (n.)
an abraded area where the skin is torn or worn off;
Synonyms: scratch / scrape / excoriation
abrasion (n.)
erosion by friction;
Synonyms: attrition / corrasion / detrition
abrasion (n.)
the wearing down of rock particles by friction due to water or wind or ice;
Synonyms: grinding / attrition / detrition
From wordnet.princeton.edu