a official responsible for control and supervision of a particular activity or area of public interest

a water containment structure with mechanical gates to enable control of the level of water release

The part of the watch movement that controls time accuracy by stepping up or slowing down the beats.

Federal Banking Agencies that supervise banks and other financial institutions depending on each institution's specific charter or mission. The five federal regulators are as follows: Federal Deposit Insurance Corporation (FDIC) Federal Reserve System (FRS) National Credit Union Administration (NCUA) Office of the Comptroller of the Currency (OCC) Office of Thrift Supervision (OTS)

A unit that has the potential to control, legislate, or otherwise influence the organization's policies and practices

When a controller changes a process variable to move the process variable back to the setpoint, it is called a regulator.

The federal, provincial or territorial government agency responsible for the control and regulation of the insurance industry under its jurisdiction.