Main Entry: an·ti·tox·in

Pronunciation: \ˌan-ti-ˈtäk-sən\

Function: noun

Etymology: International Scientific Vocabulary

Date: circa 1890

: an antibody that is capable of neutralizing the specific toxin (as a specific causative agent of disease) that stimulated its production in the body and is produced in animals for medical purposes by injection of a toxin or toxoid with the resulting serum being used to counteract the toxin in other individuals; also : an antiserum containing antitoxins