atopy - Definitions from Dictionary.com

3 results for: atopy

Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This

at·o·py

Audio Help [at-uh-pee] Pronunciation Key

–noun

an allergy, involving an inherited immunoglobulin of the IgE type, that predisposes a person to certain allergic responses, as atopic dermatitis.

[Origin: 1920–25; < Gk atopía extraordinariness, equiv. to átop(os) out of place, unusual (see a-⁶, topo-) + -ia -y³

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Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.

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atopy

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American Heritage Dictionary - Cite This Source - Share This

a·top·ic Audio Help (ā-tŏp'ĭk) Pronunciation Key
adj. Of, relating to, or caused by a hereditary predisposition toward developing certain hypersensitivity reactions, such as hay fever, asthma, or chronic urticaria, upon exposure to specific antigens: atopic dermatitis.

[From Greek atopiā, unusualness, from atopos, out of the way : a-, not; see a-¹ + topos, place.]

at'o·py (āt'ə-pē) n.

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