scratch test

noun

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

scratch test

noun

1. 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

Word History and Origins

Origin of scratch test¹

First recorded in 1935–40