n.
Pronunciation: ˌ an-ti- ' täk-s ə n
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