ŏpĕrātor, ōris, m. [operor],
a worker , operator (post-class.), Firm. Math. 3, 9; Tert. Exhort. ad Castit. 3; id. Apol. 23 fin. al.; Lact. 6, 18, 13; Vulg. Prov. 22, 2.
·noun A dealer in stocks or any commodity for speculative purposes; a speculator. II. Operator ·nou...
Webster's Dictionary of the English Language