corrasion
/kəˈreɪʒən/
noun
- The wearing away of a surface, especially rock, by the friction of particles carried by wind, water, or ice.
- The canyon was shaped by centuries of corrasion from windblown sand.
- Corrasion by glacial ice can carve deep valleys over thousands of years.
- The river's corrasion slowly smoothed the boulders into rounded pebbles.