from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A test for detecting an allergy or infectious disease, performed by means of a patch test, scratch test, or intracutaneous injection of an allergen or extract of the disease-causing organism.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun any test to determine immunity or sensitivity to a disease by introducing small amounts on or into the skin


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