rheostat

See also: rhéostat

English

A light switch with a rheostat

Etymology

From rheo- + -stat.

Pronunciation

  • (UK) IPA(key): /ˈɹiːəstæt/
  • (file)

Noun

rheostat (plural rheostats)

  1. An electrical resistor, with two terminals, whose resistance is continuously variable by moving a knob or slider.

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