Bible Dictionaries
Rheocrat

Webster's Dictionary

(n.) A kind of motor speed controller permitting of very gradual variation in speed and of reverse. It is especially suitable for use with motor driven machine tools.

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