abrasion

n. area that has been rubbed or scraped away; act of rubbing or scraping away

For other uses, see Abrasion (disambiguation). In dermatology, an abrasion, is superficial damage to the skin, generally not deeper than the epidermis. It is more superficial than an excoriation, although it can give mild bleeding. Mild abrasions, also known as 'grazes' do not scar, but deep abrasions may lead to the development of scarring tissue.
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Abrasion /abra·sion/ 1. a rubbing or scraping off through unusual or abnormal action; see also planing. 2. [more]Abrasion - Community and Resources

Noun
1. an abraded area where the skin is torn or worn off
(synonym) scratch, scrape, excoriation
(hypernym) wound, lesion
(hyponym) graze
(derivation) abrade, corrade, abrase, rub down, rub off
2. erosion by friction
(synonym) attrition, corrasion, detrition
(hypernym) erosion, eroding, eating away, wearing, wearing away
(derivation) abrade, corrade, abrase, rub down, rub off
3. the wearing down of rock particles by friction due to water or wind or ice
(synonym) grinding, attrition, detrition
(hypernym) friction, rubbing
(derivation) abrade, corrade, abrase, rub down, rub off

n. abrasion, erosion, grinding