Advertisement

rheostat (n.)

1843, coined by English inventor Charles Wheatstone from Greek rheos "a flowing, stream" (from PIE root *sreu- "to flow") + -stat "regulating device." Related: Rheostatic.

Others are reading

Advertisement
Definitions of rheostat from WordNet

rheostat (n.)
resistor for regulating current;
Synonyms: variable resistor
From wordnet.princeton.edu