Definitions of controller
  1. noun
    a mechanism that controls the operation of a machine
    “the speed controller on his turntable was not working properly”
    synonyms: control
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    cruise control
    control mechanism for keeping an automobile at a set speed
    the control on a radio or television set that is used for tuning
    disk controller
    (computer science) a circuit or chip that translates commands into a form that can control a hard disk drive
    governor, regulator
    a control that maintains a steady speed in a machine (as by controlling the supply of fuel)
    control consisting of a wheel whose rim serves as the handle by which a part is operated
    a manual control consisting of a vertical handle that can move freely in two directions; used as an input device to computers or to devices controlled by computers
    any of various controls or devices for regulating or controlling fluid flow, pressure, temperature, etc.
    electric switch, electrical switch, switch
    control consisting of a mechanical or electrical or electronic device for making or breaking or changing the connections in a circuit
    control consisting of a mechanical device for controlling the flow of a fluid
    accelerator, throttle, throttle valve
    a valve that regulates the supply of fuel to the engine
    a device that controls amount of light admitted
    ball cock, ballcock
    floating ball that controls level in a water tank
    ball valve
    any valve that checks flow by the seating of a ball
    butterfly valve
    a valve in a carburetor that consists of a disc that turns and acts as a throttle
    a valve that controls the flow of air into the carburetor of a gasoline engine
    clack, clack valve, clapper valve
    a simple valve with a hinge on one side; allows fluid to flow in only one direction
    switch for reversing the direction of an electric current
    a switch that interrupts an electric circuit in the event of an overload
    a regulator for controlling the flow of air in a fireplace
    exhaust valve
    a valve through which burned gases from a cylinder escape into the exhaust manifold
    faucet, spigot
    a regulator for controlling the flow of a liquid from a reservoir
    regulator consisting of a heavy wheel that stores kinetic energy and smooths the operation of a reciprocating engine
    ignition switch
    switch that operates a solenoid that closes a circuit to operate the starter
    intake valve
    a valve that controls the flow of fluid through an intake
    regulator that can be turned to regulate the pitch of the strings of a stringed instrument
    regulator consisting of a small cock or faucet or valve for letting out air or releasing compression or draining
    poppet, poppet valve
    a mushroom-shaped valve that rises perpendicularly from its seat; commonly used in internal-combustion engines
    button, push, push button
    an electrical switch operated by pressing
    a regulator (as a sliding plate) for regulating the flow of air into a furnace or other heating device
    escape, escape cock, escape valve, relief valve, safety valve
    a valve in a container in which pressure can build up (as a steam boiler); it opens automatically when the pressure reaches a dangerous level
    selector, selector switch
    a switch that is used to select among alternatives
    slide valve
    valve that opens and closes a passageway by sliding over a port
    floodgate, head gate, penstock, sluice valve, sluicegate, water gate
    regulator consisting of a valve or gate that controls the rate of water flow through a sluice
    steering wheel, wheel
    a handwheel that is used for steering
    thermoregulator, thermostat
    a regulator for automatically regulating temperature by starting or stopping the supply of heat
    three-point switch, three-way switch
    an electric switch that has three terminals; used to control a circuit from two different locations
    a regulator that activates or deactivates a mechanism at set times
    a switch set to operate at a desired time
    on-off switch, on/off switch, toggle, toggle switch
    a hinged switch that can assume either of two positions
    type of:
    device consisting of a piece of machinery; has moving parts that perform some function
  2. noun
    a person who directs and restrains
    synonyms: restrainer
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    derogatory term for a person who is fanatically dedicated to, or seeks to control, some activity, practice, etc.
    overcomer, subduer, surmounter
    someone who overcomes and establishes ascendancy and control by force or persuasion
    suppresser, suppressor
    someone who suppresses
    a person who restrains or checks or holds back
    type of:
    individual, mortal, person, somebody, someone, soul
    a human being
  3. noun
    someone who maintains and audits business accounts
    synonyms: accountant, comptroller
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    a qualified accountant who inspects the accounting records and practices of a business or other organization
    bean counter
    an accountant or bureaucrat who is believed to place undue emphasis on the control of expenditures
    someone who records the transactions of a business
    CPA, certified public accountant
    an accountant who has passed certain examinations and met all other statutory and licensing requirements of a United States state to be certified by that state
    chartered accountant
    a British or Canadian accountant who is a member of a professional body that has a royal charter
    cost accountant
    a specialist in the systematic recording and analysis of the costs incident to production
    internal auditor
    an auditor who is an employee of the company whose records are audited and who provides information to the management and board of directors
    type of:
    bourgeois, businessperson
    a capitalist who engages in industrial commercial enterprise
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