lepromin test

n.
  1. A test to evaluate leprosy using an intradermal injection of a lepromin; the test classifies the stage of leprosy based on reaction and differentiates tuberculoid leprosy, in which there is a positive delayed reaction at the injection site, from lepromatous leprosy, in which there is no reaction despite the active infection.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.