rheostat Meaning, Definition & Usage
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noun resistor for regulating current
variable resistor.
WordNet
Rhe"o*stat noun
Etymology
Gr. + standing still.Definitions
(Elec.) A contrivance for adjusting or regulating the strength of electrical currents, operating usually by the intercalation of resistance which can be varied at will. Wheatstone. --Rhe`o*stat"ic a.