Definify.com
Webster 1913 Edition
Abrasion
1.
The act of abrading, wearing, or rubbing off; the wearing away by friction;
as, the
. abrasion
of coins2.
The substance rubbed off.
Berkeley.
3.
(Med.)
(a)
A superficial excoriation of skin or mucous membranes.
AS
(b)
Erosion of the tooth substance
AS
Webster 1828 Edition
Abrasion
ABRA'SION
,Noun.