regulator


regulator

noun

  1. a person or thing that regulates.
  2. Horology.
    1. an adjustable device in a clock or a watch for making it go faster or slower.
    2. a master clock, usually of great accuracy, against which other clocks are checked.
  3. Machinery.
    1. a governor mechanism for regulating the flow of fuel, steam, etc., to an engine in order to maintain constant speed under varying load or resistance.
    2. a valve for regulating the pressure of flowing gas or liquid to maintain a predetermined pressure.
    3. any of various mechanisms for maintaining a temperature, a level of liquid in a tank, etc.
  4. Electricity. a device for maintaining a designated characteristic, as voltage or current, at a predetermined value, or for varying it according to a predetermined plan.
  5. a device on scuba equipment for regulating the rate at which compressed air is fed through a breathing tube in proportion to the depth of water.
  6. a device for maintaining a constant gas pressure.
  7. (initial capital letter) American History.
    1. a member of any of several bands or committees in North Carolina (1767–71), formed to resist certain abuses, as extortion by officials.
    2. (in newly settled areas) a member of any band or committee organized to preserve order before the establishment of regular legal authority.

noun

  1. a person or thing that regulates
  2. the mechanism, including the hairspring and the balance wheel, by which the speed of a timepiece is regulated
  3. a timepiece, known to be accurate, by which others are timed and regulated
  4. any of various mechanisms or devices, such as a governor valve, for controlling fluid flow, pressure, temperature, voltage, etc
  5. Also called: regulator gene a gene the product of which controls the synthesis of a product from another gene
n.

1650s, agent noun in Latin form from regulate. In English history, from 1680s; in American history, from 1767, applied to local posses that kept order (or disturbed it) in rural regions. As a mechanical device or clock used to set the time of other pieces, from 1758.

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