Ab*ra"sion (#), n. [L. abrasio, fr. abradere. See Abrade.]

1.

The act of abrading, wearing, or rubbing off; the wearing away by friction; as, the abrasion of coins.

2.

The substance rubbed off.

Berkeley.

3. Med.

A superficial excoriation, with loss of substance under the form of small shreds.

Dunglison.

© Webster 1913.