D defs.my
Entry 3 senses Webster, 1913

Abrasion

/əb-rāzh'-ən/ · Ab·ra·sion · IPA /əˈbɹeɪ.ʒn̩/
01 n. The act of abrading, wearing, or rubbing off; the wearing away by friction; as, the abrasion of coins.
  1. 1.
    The act of abrading, wearing, or rubbing off; the wearing away by friction; as, the abrasion of coins.
  2. 2.
    The substance rubbed off.
  3. 3.
    A superficial excoriation of skin or mucous membranes.(Med.)