horse'radish perox'idase enzyme, isolated from horseradish, that when microinjected can be detected by the colored products of the reaction it catalyzes, used as a tracer, as in tracing the route of a motor neuron from the cell body in the spinal cord to the muscle it innervates.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

horseradishhorseradish tree
See also:

Related Content


Play Hangman

Play Poptropica

Play Same Game

Try Our Math Flashcards