anaphylaxis
anaphylaxis anaphylaxis n. 1. [Gr. 'ana` back, way from + fy`laxis security, protection.]

1. (Med.) hypersensitivity (to a protein or drug) resulting from prior contact with a substance. [WordNet 1.5]

2. (Med.) an immediate but transient allergic reaction to an antigenic substance to which a person has become hypersensitized; it is characterized by the contraction of smooth muscle and capillary dilation. These reactions are caused by the release of certain substances such as histamine, bradykinin, serotonin, and slow-reacting substance in response to the reaction of the antigen with a mast cell-fixed antibody, chiefly IgE. This term is sometimes used to refer to the severe form of the reaction called {anaphylactic shock}. --[Stedman] [PJC]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • anaphylaxis — anaphylaxis. См. анафилаксия. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • anaphylaxis — (n.) see ANAPHYLACTIC (Cf. anaphylactic) …   Etymology dictionary

  • anaphylaxis — [an΄ə fə lak′sis] n. [ModL < Gr ana , intens. + phylaxis, a guarding < phylassein, to guard] a condition of hypersensitivity to proteins or other substances, requiring previous exposure to the allergenic substance and resulting in shock or… …   English World dictionary

  • Anaphylaxis — Infobox Disease Name = Anaphylaxis Caption = DiseasesDB = 29153 ICD10 = ICD10|T|78|2|t|66 ICD9 = ICDO = OMIM = MedlinePlus = eMedicineSubj = med eMedicineTopic = 128 MeshID = D000707 Anaphylaxis is an acute systemic (multi system) and severe Type …   Wikipedia

  • anaphylaxis — anaphylactic /an euh feuh lak tik/, adj. anaphylactically, adv. /an euh feuh lak sis/, n. Pathol. exaggerated allergic reaction to a foreign protein resulting from previous exposure to it. [1905 10; ANA + (PRO)PHYLAXIS] * * * Severe, immediate,… …   Universalium

  • anaphylaxis — An induced systemic or generalized sensitivity; at times the term a. is used for anaphylactic shock. The term is commonly used to denote the immediate, transient kind of immunologic (allergic) reaction characterized by contraction of smooth …   Medical dictionary

  • anaphylaxis — anaphylactic shock anaphylactic shock n. (Med.) a severe form of physiological shock, often having a fatal outcome, caused by an extreme immunological reaction to antigens. It is a severe form of {anaphylaxis[2]}, and is characterized by smooth… …   The Collaborative International Dictionary of English

  • anaphylaxis — anafilaksija statusas T sritis ekologija ir aplinkotyra apibrėžtis Labai ūmi įjautrinto organizmo reakcija pakartotinai į jį patekus specifiniam alergenui. Dažniausia sukelia vabzdžių nuodai, kai kurie fermentai, vitaminai, antibiotikai.… …   Ekologijos terminų aiškinamasis žodynas

  • anaphylaxis — noun (plural anaphylaxes) Etymology: New Latin, from ana + prophylaxis Date: 1907 1. hypersensitivity (as to foreign proteins or drugs) resulting from sensitization following prior contact with the causative agent 2 …   New Collegiate Dictionary

  • anaphylaxis — n. [Gr. ana, again; phylax, guard] A state of excessive sensitivity to a serum or foreign protein that can result in a state of shock, that may develop with marked circulatory disturbances and possible death; anaphylactic adj …   Dictionary of invertebrate zoology

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