1. The act or process of scraping or wearing away by friction or erosion
The abrasion on his knee required medical attention.
A abrasão no seu joelho exigiu atenção médica.
2. A scraped or worn area of skin or surface caused by rubbing
She had multiple abrasions from the fall.
Ela tinha múltiplas abrasões causadas pela queda.
3. In geology, the wearing away of rock by mechanical action
Coastal abrasion is reshaping the shoreline.
A abrasão costeira está remodelando a linha do litoral.