English
abrasion
Pronunciation
  • (America) IPA: /əˈbɹeɪ.ʒn̩/
Noun

abrasion

  1. The act of abrading, wearing, or rubbing off; the wearing away by friction. [First attested in the mid 17th century.]
  2. (obsolete) The substance thus rubbed off; debris. [First attested in the mid 18th century.]
  3. (geology) The effect of mechanical erosion of rock, especially a river bed, by rock fragments scratching and scraping it. [First attested in the mid 19th century.]
  4. An abraded, scraped, or worn area. [First attested in the mid 20th century.]
  5. (medicine) A superficial wound caused by scraping; an area of skin where the cells on the surface have been scraped or worn away. [First attested in the mid 20th century.]
  6. (dentistry) The wearing away of the surface of the tooth by chewing.
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