from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An abnormally high sensitivity to certain substances, such as pollens, foods, or microorganisms. Common indications of allergy may include sneezing, itching, and skin rashes.
- n. Informal An adverse sentiment; antipathy: an allergy to cocktail parties.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A disorder of the immune system causing adverse reactions to substances (allergens) not harmful to most and marked by the body's production of histamines and associated with atopy, anaphylaxis, and asthma.
- n. Any condition of hypersensitivity to a substance.
- n. Altered susceptibility to a first treatment as exhibited in reaction to a subsequent one.
- n. An antipathy, as toward a person or activity.
from the GNU version of the Collaborative International Dictionary of English
- n. hypersensitivity to a particular substance.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. hypersensitivity reaction to a particular allergen; symptoms can vary greatly in intensity
German Allergie : Greek allos, other; see allo- + Greek ergon, action; see werg- in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)
From German Allergie. Coined by Austrian pediatrician Clemens von Pirquet in 1906 from Ancient Greek ἄλλος (allos, "other") + ἔργον (ergon, "work, activity"), on the model of Energie. (Wiktionary)