Source : Webster's Revised Unabridged Dictionary (1913)

Hemadrometer \Hem`a*drom"e*ter\, Hemadromometer
\Hem`a*dro*mom"e*ter\, n. [Hema- + Gr. ? course + -meter.]
   (Physiol.)
   An instrument for measuring the velocity with which the blood
   moves in the arteries.