Abrasion

The wearing away of coastal rock by sediment carried by waves rubbing or striking against it.

Glacial erosion in which rock fragments carried in the ice scrape and grind against bedrock.

Erosion in which sediment carried by a river scrapes or grinds against its bed and banks, wearing them away.

Erosion in which material carried by a river scrapes and wears away its bed and banks.

Glacial erosion in which rock fragments embedded in moving ice scrape and grind against bedrock.

Glacial erosion in which rock fragments carried in the ice scrape and grind against the underlying rock.

The wearing away of coastal rock by sediment carried or thrown against it by waves.

The wearing away of a river’s bed and banks by sediment scraping or striking them.

The wearing away of a surface by sediment scraping or striking against it.

Erosion caused by rock fragments carried by waves scraping and striking coastal rock.

Erosion caused by transported rock fragments scraping and striking a river bed, bank or cliff.