Definitions of operator

  1. ( mathematics) a symbol that represents a function from functions to functions; " the integral operator"
  2. someone who owns or operates a business; " who is the operator of this franchise?"
  3. a speculator who trades aggressively on stock or commodity markets
  4. a shrewd or unscrupulous person who knows how to circumvent difficulties
  5. One who, or that which, operates or produces an effect.
  6. One who performs some act upon the human body by means of the hand, or with instruments.
  7. A dealer in stocks or any commodity for speculative purposes; a speculator.
  8. The symbol that expresses the operation to be performed; - called also facient.
  9. One who, or that which, works or acts; one who is employed in a telephone exchange to make connections between lines; one who runs a machine in a factory, etc.; a broker, or one who acts for others; as, a coal operator.
  10. He who or that which operates.