Definify.com
Webster 1913 Edition
Graduator
Grad′u-a′tor
,Noun.
1.
One who determines or indicates graduation;
as, a graduator of instruments
. 2.
An instrument for dividing any line, right or curve, into small, regular intervals.
3.
An apparatus for diffusing a solution, as brine or vinegar, over a large surface, for exposure to the air.
Webster 1828 Edition
Graduator
GRAD'UATOR
,Noun.