Abrasion

Abrasion may refer to: Abrasion (dental), the loss of tooth structure by mechanical forces from a foreign element Abrasion (medical), a wound consisting of superficial damage to the skin Abrasion (mechanical), the process of scuffing, scratching, wearing down, marring, or rubbing away Abrasion (geology), mechanical scraping of a surface by friction between moving particles

==See also== Abrasion coast, a coastline that is characterised by the removal (abrasion) of material Abrasives Scarification (botany), alteration of a seed coat, sometimes by abrasion, to encourage germination