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rheostat

rheostat

1 9.4
A device that controls the flow of electricity by changing resistance
  • noun
  • /ˈriːəʊstæt/
  • Specialized
translation icon : reóstato
  • Then, as he turns a rheostat, the lights slowly rise, revealing the cell to be almost empty, stripped of its books.
  • turns the rheostat
  • rheostat controls current

I would argue life is a rheostat.

Examples

  • The amount of heat can be controlled by adjusting the rheostat on the device's control panel.

  • Dr. Lecter slowly turns up the rheostat in his cell.

    Fiction book (1991)
  • I took the rheostat off the engine.

  • The amount of heat can be controlled by adjusting the rheostat on the device's control panel.

    Academic text (2008)
  • Harry moves to the house lights rheostat and slowly fades them up.

    Fiction book (2001)
  • The faces around the tent grew brighter as though someone were slowly turning up a hidden rheostat in the smoky teepee.

    Fiction book (1993)
  • A simple timer built into the light switch with a rotary rheostat to set the delay time is inexpensive and reliable.

    Blog text (27)
  • She cupped her hand over the rheostat control, thought of how it would be to press it, to add a hint of light to the shadows here.

    Fiction book (1995)
  • Gordon had a rheostat with which to adjust the lighting in the RV.

  • Each rod in turn operates a small rheostat, which controls the current.

Synonyms

variable resistor
vsrheostat
  • Specialized
5.3

A part that changes the amount of electric current in a circuit

uses a sliding contact design to vary resistance specifically for current adjustment

How Adjustable

variable resistor
  • Specialized
5.3
rheostat
  • Specialized
1 9.4
potentiometer
  • Specialized
1 9.6
trimmer
  • Specialized
7.4

Surface Forms

rheostat singular
rheostats plural

Morphology

rheostat = rheo + stat

Formed from Greek combining forms ('rheo-' and '-stat') that are not productive or familiar standalone English morphemes for average learners, so the meaning cannot be reliably derived from common English vocabulary.

Etymology

Rheostat comes from Greek parts rheo- meaning 'flow' and -stat meaning 'to stand' or 'stay', the same -stat you see in thermostat. So a rheostat is a device that controls the 'flow' of electric current, letting you make lights or motors brighter or dimmer.