D defs.my
Entry 3 senses Webster, 1913

Graduator

· Grad·u·a·tor · IPA
01 n. One who determines or indicates graduation; as, a graduator of instruments.
  1. 1.
    One who determines or indicates graduation; as, a graduator of instruments.
  2. 2.
    An instrument for dividing any line, right or curve, into small, regular intervals.
  3. 3.
    An apparatus for diffusing a solution, as brine or vinegar, over a large surface, for exposure to the air.