1. A spot on one's arm that is scraped from falling off a bike is an example of an abrasion.
2. An area of rocks on a shoreline that has been worn away from the waves is an example of an abrasion.
Origin of abrasion
- Medieval Latin abrāsiō abrāsiōn- from Latin abrāsus past participle of abrādere to scrape off abrade
From American Heritage Dictionary of the English Language, 5th Edition