| test, skin, for allergy | A test done on the skin to identify the allergy substance (allergen) triggering the allergic reaction. A small amount of the suspected allergy substance is placed on the skin. The skin is then gently scratched through the small drop with a special sterile needle. If the skin reddens and, more importantly, swells, then allergy to that substance is probable. (12 Dec 1998) |
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| latent allergy | Allergy that causes no signs or symptoms but can be revealed by means of certain immunologic tests with specific allergens. (05 Mar 2000) |