ventĭlātor, ōris, m. [ventilo], one who winnows grain, a winnower.
I Lit., Col. 2, 10, 14.—
II Transf. (from tossing up into the air), a juggler , Quint. 10, 7, 11 Spald.; Prud. στεφ. 10, 78.
·noun A contrivance for effecting ventilation; especially, a contrivance or machine for drawing off ...
Webster's Dictionary of the English Language