maximum velocity

n.
  1. The maximum rate of an enzymatic reaction that can be achieved by progressively increasing the substrate concentration.
  2. The maximum initial rate of shortening of a myocardial fiber that can be obtained under zero load. Used to evaluate the contractility of the fiber.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.