Medicine/Medical. a test for suspected allergy by application to the skin of a patch impregnated with an allergen: allergic reaction is indicated by redness at the site of application.
Origin of patch test
First recorded in 1930–35
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British Dictionary definitions for patch test
med a test to detect an allergic reaction by applying small amounts of a suspected substance to the skin and then examining the area for signs of irritation
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medicine definitions for patch test
A test for allergic sensitivity in which a suspected allergen is applied to the skin on a small surgical pad for a period of time to determine if an allergic response is present.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.