Michaelis-Menten hypothesis

[-mĕntən]
n.
  1. The hypothesis that a complex is formed between an enzyme and its substrate; the complex then dissociates to yield free enzyme and the reaction products, with the rate of dissociation determining the overall rate of substrate-product conversion.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.