Dictionary.com

anaphylaxis

[ an-uh-fuh-lak-sis ]
/ ˌæn ə fəˈlæk sɪs /
Save This Word!

noun Pathology.
exaggerated allergic reaction to a foreign protein resulting from previous exposure to it.
QUIZ
CAN YOU ANSWER THESE COMMON GRAMMAR DEBATES?
There are grammar debates that never die; and the ones highlighted in the questions in this quiz are sure to rile everyone up once again. Do you know how to answer the questions that cause some of the greatest grammar debates?
Question 1 of 7
Which sentence is correct?

Origin of anaphylaxis

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/, adjectivean·a·phy·lac·ti·cal·ly, adverban·ti·an·a·phy·lac·tic, adjective, nounpseu·do·an·a·phy·lac·tic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use anaphylaxis in a sentence

British Dictionary definitions for anaphylaxis

anaphylaxis
/ (ˌænəfɪˈlæksɪs) /

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

Derived forms of anaphylaxis

anaphylactic or anaphylactoid, adjectiveanaphylactically, adverb

Word Origin for anaphylaxis

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

Scientific definitions for anaphylaxis

anaphylaxis
[ ăn′ə-fə-lăksĭs ]

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