anaphylaxis

[ an-uh-fuh-lak-sis ]
/ ˌæn ə fəˈlæk sɪs /

noun Pathology.

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

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/, adjective an·a·phy·lac·ti·cal·ly, adverb an·ti·an·a·phy·lac·tic, adjective, noun pseu·do·an·a·phy·lac·tic, adjective

Example sentences from the Web for anaphylactic

British Dictionary definitions for anaphylactic

anaphylaxis
/ (ˌænəfɪˈlæksɪs) /

noun

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

Derived forms of anaphylaxis

anaphylactic or anaphylactoid, adjective anaphylactically, adverb

Word Origin for anaphylaxis

C20: from ana- + ( pro) phylaxis

Medical definitions for anaphylactic

anaphylaxis
[ ăn′ə-fə-lăksĭs ]

n. pl. an•a•phy•lax•es (-lăksēz)

Hypersensitivity induced by preliminary exposure to a substance and usually producing a contraction of smooth muscle and a dilation of blood vessels.
anaphylactic shock

Other words from anaphylaxis

an′a•phy•lactic (-lăktĭk) adj.

Scientific definitions for anaphylactic

anaphylaxis
[ ăn′ə-fə-lăksĭs ]

See anaphylactic shock.