noun (used with a singular verb)
the branch of physiology dealing with the forces involved in the circulation of the blood.
Origin of hemodynamics
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
The study of the forces involved in the circulation of blood.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.