Longman Dictionary English From Longman Dictionary of Contemporary EnglishRelated topics: Illness & disability, Biology, Drugs, medicinesantitoxinan‧ti‧tox‧in /ˌæntiˈtɒksɪn $ -ˈtɑːk-/ noun [countable] MIa medicine or substance produced by your body which stops the effects of a poisonExamples from the Corpusantitoxin• Because of the delayed diagnosis no antitoxin was given. ldoceonline.com