The Collaborative International Dictionary
reometer
Rheometer \Rhe*om"e*ter\, n. [Gr. "rei^n to flow + -meter.]
(Physics) An instrument for measuring currents, especially the force or intensity of electrical currents; a galvanometer.
(Physiol.) An instrument for measuring the velocity of the blood current in the arteries.
Wiktionary
reometer
n. (alternative form of rheometer English)