Defn: 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.
RHEOMETER
Rhe*om"e*ter, n. Etym: [Gr. -meter.] [Written also reometer.]
1. (Physics)
Defn: An instrument for measuring currents, especially the force or intensity of electrical currents; a galvanometer.
2. (Physiol.)
Defn: An instrument for measuring the velocity of the blood current in the arteries.
RHEOMETRIC
Rhe`o*met"ric, a.
Defn: Of or pertaining to a rheometer or rheometry. Lardner.
RHEOMETRY
Rhe*om"e*try, n.
1. The measurement of the force or intensity of currents.