[koun′tər-ĭm′yə-nō-ĭ-lĕk′trə-fə-rēsĭs, -ĭ-myōō′-]


A modification of immunoelectrophoresis in which antigen and antibody move in opposite directions and form precipitates in the area between the cells where they meet in concentrations of optimal proportions.

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