operator

noun

One who operates a machine or device.

noun

The owner or manager of a business.

noun

A military person who executes a special operation.

noun

A person who is adept at accomplishing goals through shrewd or unscrupulous maneuvers.

noun

A function, especially one from a set to itself, such as differentiation of a differentiable function or rotation of a vector.

noun

A logical operator.

noun

A chromosomal segment of DNA that regulates the activity of the structural genes of an operon by interacting with a specific repressor.

noun

One who conducts a business, as mining; a capitalist who carries on a business: opposed to operative.

noun

One who operates in any way, or on or against anything.