- exaggerated allergic reaction to a foreign protein resulting from previous exposure to it.
Origin of anaphylaxis
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for anaphylactic
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.
Among the reactions usually classed as anaphylactic are the occasional cases of sensitivity to particular food substances.
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
Now all these specific reactions, the precipitin reaction as well as the anaphylactic reaction, can be called forth by proteins.
- extreme sensitivity to an injected antigen, esp a protein, following a previous injection
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
Word Origin and History for anaphylactic
Online Etymology Dictionary, © 2010 Douglas Harper
- Hypersensitivity induced by preliminary exposure to a substance and usually producing a contraction of smooth muscle and a dilation of blood vessels.
- anaphylactic shock
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- See anaphylactic shock.
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