anaphylaxis

[an-uh-fuh-lak-sis]

noun

Pathology.

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

anaphylaxis

/ ˌænəfɪˈlæksɪs /

noun

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

anaphylaxis

1. See anaphylactic shock

Other Word Forms

• anaphylactic adjective
• anaphylactically adverb
• antianaphylactic adjective
• pseudoanaphylactic adjective

Word History and Origins

Origin of anaphylaxis¹

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

Word History and Origins

Origin of anaphylaxis¹

C20: from _ana- + ( _pro ) _phylaxis