Abrasion

n.	1.	The act of abrading, wearing, or rubbing off; the wearing away by friction; as, the abrasion of coins.
	2.	The substance rubbed off.
	3.	(Med.) A superficial excoriation, with loss of substance under the form of small shreds.

Noun	1.	abrasion - an abraded area where the skin is torn or worn off Synonyms: excoriation, scratch, scrape
	2.	abrasion - erosion by friction Synonyms: attrition, corrasion, detrition
	3.	abrasion - the wearing down of rock particles by friction due to water or wind or ice Synonyms: attrition, detrition, grinding

ablation, abrasive, abstraction, atomization, attrition, beating, blemish, break, brecciation, buffing, burn, burnishing, chafing, check, chip, comminution, concussion, crack, crackle, craze, crumbling, crushing, cut, deduction, detrition, disintegration, dressing, erasure, erosion, filing, flash burn, fracture, fragmentation, fray, frazzle, fretting, gall, galling, gash, granulation, granulization, grating, grazing, grinding, hurt, incision, injury, laceration, lesion, levigation, limation, mashing, mortal wound, mutilation, polishing, pounding, powdering, puncture, purification, rasping, refinement, removal, rent, rip, rubbing away, run, rupture, sandblasting, sanding, scald, scorch, scouring, scrape, scratch, scrub, scrubbing, scuff, second-degree burn, shining, shredding, slash, smashing, smoothing, sore, stab, stab wound, subduction, sublation, subtraction, taking away, tear, third-degree burn, trauma, trituration, wear, wearing away, wound, wounds immedicable, wrench