Could you offer a clear explanation of the term 'Abrasion' as used in the medical field?
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