1. Any of various controls or devices for regulating or controlling fluid flow, pressure, temperature, etc. 
2. An official responsible for control and supervision of a particular activity or area of public interest 
3. A control that maintains a steady speed in a machine (as by controlling the supply of fuel)
   - governor

Derived forms: regulators

See also: regulate

Type of: control, controller, functionary, official

Encyclopedia: Regulator

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