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anaphylaxis

[an-uh-fuh-lak-sis] /ˌæn ə fəˈlæk sɪs/
noun, Pathology
1.
exaggerated allergic reaction to a foreign protein resulting from previous exposure to it.
Origin of anaphylaxis
1905-1910
1905-10; ana- + (pro)phylaxis
Related forms
anaphylactic
[an-uh-fuh-lak-tik] /ˌæn ə fəˈlæk tɪk/ (Show IPA),
adjective
anaphylactically, adverb
antianaphylactic, adjective, noun
pseudoanaphylactic, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for anaphylactic
Historical Examples
  • The histone was so toxic that its anaphylactic properties could not be studied.

  • Idiosyncrasy to cow's milk which is observed sometimes in infants is an anaphylactic phenomenon.

    Food Poisoning Edwin Oakes Jordan
  • The first case in the line of descent must start with a severe poisoning that lays the foundation of the anaphylactic inheritance.

    The Treatment of Hay Fever George Frederick Laidlaw
  • Among the reactions usually classed as anaphylactic are the occasional cases of sensitivity to particular food substances.

    Food Poisoning Edwin Oakes Jordan
  • Now all these specific reactions, the precipitin reaction as well as the anaphylactic reaction, can be called forth by proteins.

British Dictionary definitions for anaphylactic

anaphylaxis

/ˌænəfɪˈlæksɪs/
noun
1.
extreme sensitivity to an injected antigen, esp a protein, following a previous injection
Derived Forms
anaphylactic, anaphylactoid, adjective
anaphylactically, adverb
Word Origin
C20: from ana- + (pro)phylaxis
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for anaphylactic
adj.

1905, with -ic + medical Latin noun anaphylaxis "exaggerated susceptibility," from French anaphylaxie (1902), from Greek ana- (see ana-) + phylaxis "watching, guarding" (cf. prophylactic). Anaphylactic shock is attested by 1916.

anaphylaxis

n.
Online Etymology Dictionary, © 2010 Douglas Harper
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anaphylactic in Medicine

anaphylaxis an·a·phy·lax·is (ān'ə-fə-lāk'sĭs)
n. pl. an·a·phy·lax·es (-lāk'sēz)

  1. Hypersensitivity induced by preliminary exposure to a substance and usually producing a contraction of smooth muscle and a dilation of blood vessels.

  2. See anaphylactic shock.


an'a·phy·lac'tic (-lāk'tĭk) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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anaphylactic in Science
anaphylaxis
  (ān'ə-fə-lāk'sĭs)   
See anaphylactic shock.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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