GRADUATOR
Etymology
Noun
graduator (plural graduators)
One who determines or indicates graduation.
An instrument for dividing any line, straight or curved, into smaller regular intervals.
An apparatus for diffusing a solution, such as brine or vinegar, over a large surface, for exposure to the air.
Source: Wiktionary
Grad"u*a"tor, n.
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.
Source: Webster’s Unabridged Dictionary 1913 Edition