Definition
Abrasion is the process of wearing down or rubbing away by means of friction; a scraped or worn area.
Etymology. 1656, from M.L. abrasionem "a scraping," noun of action from L. abrasus, pp. of abradere, from ab- "off" + radere "to scrape" (see raze). Abrasive in the fig. sense of "tending to provoke anger" is first recorded 1925.
See also: Alligator skin.
Discussion
Abrasion injury can cause cosmetic blemishes on some fruits, thereby reducing their grade or quality. During windy period, young leaves can rub against each other, creating injured leaf margins.