anaphylatoxin


an·a·phyl·a·tox·in

noun \ˌan-ə-ˌfil-ə-ˈtäk-sən\

Definition of ANAPHYLATOXIN

: a toxic substance postulated to be formed in blood serum treated with some bacterial polysaccharides in order to explain the anaphylaxis that results when the treated and modified serum is injected into experimental animals

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