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rheostat

[ ree-uh-stat ]

noun

, Electricity.
  1. an adjustable resistor so constructed that its resistance may be changed without opening the circuit in which it is connected, thereby controlling the current in the circuit.


rheostat

/ ˈriːəˌstæt /

noun

  1. a variable resistance, usually consisting of a coil of wire with a terminal at one end and a sliding contact that moves along the coil to tap off the current


rheostat

/ ə-stăt′ /

  1. See under resistor


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Derived Forms

  • ˌrheoˈstatic, adjective

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Other Words From

  • rheo·static adjective

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Word History and Origins

Origin of rheostat1

First recorded in 1843; rheo- + -stat

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Example Sentences

The binding post E of the rheostat is connected to the base binding post J.

This can, however, be accomplished by means of a small rheostat placed in series with the motor.

The rheostat acts in an electrical circuit in just the same way a valve does in a hydraulic circuit.

A very simple and inexpensive rheostat may be constructed as follows: Procure a piece of thin fiber, about 1/16 in.

That gives you your direction, and the rheostat here at the belt changes the velocity.

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rheoreceptorrheotaxis