Controller
Origin
From Middle English countreroller, from Anglo-Norman countrerolleour, from Old French contrerelleor (French contrôleur), from Medieval Latin contrÄrotulÄtor, from *contrÄrotulÄre (from which control). Equivalent to control + -er.
Full definition of controller
Noun
controller
(plural controllers)- One who controls something.
- unknown date DrydenThe great controller of our fate
Deigned to be man, and lived in low estate. - A person who audits, and manages the financial affairs of a company or government; a comptroller.
- A mechanism that controls or regulates the operation of a machine, especially a peripheral device in a computer.
- (nautical) An iron block, usually bolted to a ship's deck, for controlling the running out of a chain cable. The links of the cable tend to drop into hollows in the block, and thus hold fast until disengaged.