rŏtātor, ōris, m. [roto],
one who turns a thing round in a circle , a whirler round : Bassaridum (Evan), Stat. S. 2, 7, 7; Cassiod. Var. 7, 5.
·noun A revolving reverberatory furnace. II. Rotator ·noun that which gives a rotary or rolling mot...
Webster's Dictionary of the English Language