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anaphylactic shock
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noun
Pathology. a severe and sometimes fatal allergic reaction to a foreign substance, especially a protein, as serum or bee venom, to which an individual has become sensitized, often involving rapid swelling, acute respiratory distress, and collapse of circulation.Compare cardiogenic shock, hypovolemic shock.
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Origin of anaphylactic shock
First recorded in 1905–10
Words nearby anaphylactic shock
anaphora, anaphoresis, anaphoric, anaphrodisia, anaphrodisiac, anaphylactic shock, anaphylaxis, anaplasia, anaplasmosis, anaplastic, anaplasty
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use anaphylactic shock in a sentence
British Dictionary definitions for anaphylactic shock
anaphylactic shock
noun
a severe, sometimes fatal, reaction to a substance to which a person has an extreme sensitivity, often involving respiratory difficulty and circulation failure
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 anaphylactic shock
anaphylactic shock
[ ăn′ə-fÉ™-lăk′tÄk ]
A sudden, life-threatening allergic reaction, characterized by dilation of blood vessels with a sharp drop in blood pressure and bronchial spasm with shortness of breath. Anaphylactic shock is caused by exposure to a foreign substance, such as a drug or bee venom, to which the individual has been previously exposed. The substances act as antigens, provoking a preliminary immune response during the first exposure that results in a full-blown, immediate response during secondary exposure, called an immediate hypersensitivity reaction. Emergency treatment, including epinephrine injections, must be administered to prevent death. Also called anaphylaxis
The American Heritage® Science Dictionary
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