allergic reaction


allergic reaction
hypersensitivity r.; used particularly to denote a type I hypersensitivity r.

Medical dictionary. 2011.

Look at other dictionaries:

  • allergic reaction — noun hypersensitivity reaction to a particular allergen; symptoms can vary greatly in intensity • Syn: ↑allergy • Derivationally related forms: ↑allergic (for: ↑allergy), ↑allergist (for: ↑ …   Useful english dictionary

  • allergic reaction — n. hypersensitivity reaction, excessive sensitivity to a specific allergen, excessive sensitivity to certain substances (i.e. animal hair or pollen) which often causes the development of respiratory problems or other symptoms …   English contemporary dictionary

  • type I allergic reaction — noun an allergic reaction that becomes apparent in a sensitized person only minutes after contact • Syn: ↑immediate allergy, ↑atopy, ↑atopic allergy • Hypernyms: ↑allergy, ↑allergic reaction …   Useful english dictionary

  • type IV allergic reaction — noun an allergic reaction that becomes apparent only hours after contact • Syn: ↑delayed allergy • Hypernyms: ↑allergy, ↑allergic reaction …   Useful english dictionary

  • Allergic inflammation — is an important pathophysiological feature of several disabilities or medical conditions including allergic asthma, atopic dermatitis, allergic rhinitis and several ocular allergic diseases. Allergic reactions may generally be divided into two… …   Wikipedia

  • Allergic conjunctivitis — Allergic eye disease Classification and external resources Allergic conjunctivitis ICD 9 372.14 …   Wikipedia

  • allergic — adj. 1. of or pertaining to allergy. allergic reaction [WordNet 1.5] 2. 1 having an allergy or peculiar or excessive susceptibilty especially to a specific factor allergic children Syn: hypersensitive, hypersensitized, sensitized, supersensitive …   The Collaborative International Dictionary of English

  • allergic rhinitis — n rhinitis caused by exposure to an allergen esp hay fever * * * a general term used to denote any allergic reaction of the nasal mucosa; it may occur perennially (nonseasonal allergic r.) or seasonally (hay fever) …   Medical dictionary

  • reaction — I (opposition) noun backfire, backlash, challenge, clash, conflict, contradiction, contrariety, countertendency, differences, disagreement, disapprobation, discountenance, expression of disapproval, objection, offset, polarity, protest, rebound,… …   Law dictionary

  • reaction — noun 1 response ADJECTIVE ▪ extreme, strong, violent ▪ favourable/favorable, positive ▪ adverse, hostile, negative …   Collocations dictionary


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