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

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

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