anaphylaxis

[ an-uh-fuh-lak-sis ]

nounPathology.
  1. exaggerated allergic reaction to a foreign protein resulting from previous exposure to it.

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Origin of anaphylaxis

1
First recorded in 1905–10; ana- + (pro)phylaxis

Other words from anaphylaxis

  • an·a·phy·lac·tic [an-uh-fuh-lak-tik], /ˌæn ə fəˈlæk tɪk/, adjective
  • an·a·phy·lac·ti·cal·ly, adverb
  • an·ti·an·a·phy·lac·tic, adjective, noun
  • pseu·do·an·a·phy·lac·tic, adjective

Words Nearby anaphylaxis

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use anaphylaxis in a sentence

  • Recent workers with pollens come near the truth in describing hay fever as an anaphylaxis.

    The Treatment of Hay Fever | George Frederick Laidlaw
  • The inherited form of hay fever is explained by the well-known transmission of anaphylaxis to the offspring.

    The Treatment of Hay Fever | George Frederick Laidlaw
  • The anaphylaxis theory halts a little at this point and is not exactly clear about the mechanism of that first poisoning.

    The Treatment of Hay Fever | George Frederick Laidlaw
  • He is in a state of exquisite anaphylaxis and a dose of pollen injected into his blood may kill him in twenty minutes.

    The Treatment of Hay Fever | George Frederick Laidlaw
  • What if gout should prove to be a sensitization or anaphylaxis to uric acid that does not exist in the non-gouty?

    The Treatment of Hay Fever | George Frederick Laidlaw

British Dictionary definitions for anaphylaxis

anaphylaxis

/ (ˌænəfɪˈlæksɪs) /


noun
  1. extreme sensitivity to an injected antigen, esp a protein, following a previous injection

Origin of anaphylaxis

1
C20: from ana- + (pro) phylaxis

Derived forms of anaphylaxis

  • anaphylactic or anaphylactoid, adjective
  • anaphylactically, adverb

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

Scientific definitions for anaphylaxis

anaphylaxis

[ ăn′ə-fə-lăksĭs ]


The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.