reciprocal transfusion

n.

An attempt to confer immunity by transfusing blood taken from a donor just recovered from an infectious disease into a recipient suffering from the same disease, at the same time transfusing an equal amount from the sick to the well person.

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