Bible Dictionaries
Rheostat

Webster's Dictionary

(n.) A contrivance for adjusting or regulating the strength of electrical currents, operating usually by the intercalation of resistance which can be varied at will.

Bibliography Information
Webster, Noah. Entry for 'Rheostat'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​r/rheostat.html. 1828.