What does antitoxin or antitoxine mean?
The definition of antitoxin and antitoxine
An`ti*tox”in, An`ti*tox”ine, n.
Etym: [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.