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

/ rē′ə-stăt′ /

1. See under resistor

Derived Forms

• ˌrheoˈstatic, adjective

Other Words From

• rheo·static adjective

Word History and Origins

Origin of rheostat¹

First recorded in 1843; rheo- + -stat

Example Sentences

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

From Project Gutenberg

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

From Project Gutenberg

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

From Project Gutenberg

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

From Project Gutenberg

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

From Project Gutenberg