- 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
- 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 anti-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
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- See anaphylactic shock.
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