neutralizing antibody

[nōōtrə-lī′zĭng]

n.

An antibody that reacts with an infectious agent, usually a virus, and destroys or inhibits its infectiveness and virulence.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.