scratch-test

scratch test

noun
a test for a suspected allergy in which the skin is scratched and an allergen applied to the area, redness indicating a positive reaction.

Origin:
1935–40

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Collins
World English Dictionary
scratch test
 
n
med a skin test to determine allergic sensitivity to various substances by placing the allergen to be tested over an area of lightly scratched skin. A positive reaction is typically indicated by the formation of a weal

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

scratch test (skrāch)
n.
A test for allergy performed by scratching the skin and applying an allergen to the wound.

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