The Collaborative International Dictionary
Antitoxine
Antitoxin \An`ti*tox"in\, Antitoxine \An`ti*tox"ine\, n. [Pref. anti- + toxin.] A substance (sometimes the product of a specific micro-organism and sometimes naturally present in the blood or tissues of an animal), capable of producing immunity from certain diseases, or of counteracting the poisonous effects of pathogenic bacteria.
Wiktionary
antitoxine
n. (archaic form of antitoxin English)