<p><strong>Noun</strong></p><ul><li>an employee, often an officer, of a business firm who checks expenditures, finances, etc.; comptroller.</li><li>a person who regulates, directs, or restrains.</li><li>British Aeronautics: a dispatcher.</li><li>a regulating mechanism; governor.</li><li>the key component of a device, as a terminal, printer, or external storage unit, that contains the circuitry necessary to interpret and execute instructions fed into the device.</li><li>Digital Technology: a remote piece of hardware used to direct or control an electronic device; a video game controller.</li></ul>