Operator

·noun A dealer in stocks or any commodity for speculative purposes; a speculator.

II. Operator ·noun One who, or that which, operates or produces an Effect.

III. Operator ·noun The symbol that expresses the operation to be performed;

— called also facient.

IV. Operator ·noun One who performs some act upon the human body by means of the hand, or with instruments.

operator
ŏpĕrātor, ōris, m. [operor], a worker , operator (post-class.), Firm. Math. 3, 9; Tert. Exhort. a...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.