Definify.com
Webster 1913 Edition
Grinder
Grind′er
,Noun.
1.
One who, or that which, grinds.
2.
One of the double teeth, used to grind or masticate the food; a molar.
Grinder’s asthma
, Grinder's phthisis
, or
Grinder's rot
(Med.)
, a lung disease produced by the mechanical irritation of the particles of steel and stone given off in the operation of grinding.
Webster 1828 Edition
Grinder
GRINDER
,Noun.
1.
The instrument of grinding.2.
A tooth that grinds or chews food; a double tooth; a jaw-tooth.3.
The teeth in general.