from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun medicine A hereditary disorder marked by the tendency to develop localized immediate hypersensitivity reactions to allergens such as pollen, food etc and is manifested by hay fever, asthma, or similar allergic conditions; generally considered to be caused by the interaction of environmental and genetic factors.
  • noun A person suffering from atopic syndrome; a case of atopy.

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

  • noun an allergic reaction that becomes apparent in a sensitized person only minutes after contact


from Wiktionary, Creative Commons Attribution/Share-Alike License

From Ancient Greek ἀτοπία (atopia), from ἄτοπος (atopos), from α- (a-) + τόπος (topos, "place").



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