n.
Any of a class of enzymes that catalyze the reversible interconversion of pyruvate and lactate, found predominantly in the liver, kidneys, striated muscle, and heart muscle.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
