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.

GRADUS
Gra"dus, n. Etym: [From L. gradus ad Parnassum a step to Parnassus.]

Defn: A dictionary of prosody, designed as an aid in writing Greek or
Latin poetry.
He set to work . . . without gradus or other help. T. Hughes.

GRAF
Graf, n. Etym: [G. Cf. -grave.]

Defn: A German title of nobility, equivalent to earl in English, or count in French. See Earl.

GRAFF
Graff, n. Etym: [OE. grafe, greife, greive. Cf. Margrave.]

Defn: A steward; an overseer. [A prince] is nothing but a servant, overseer, or graff, and not the head, which is a title belonging only to Christ. John Knox.

GRAFF
Graff n. & v.