antitoxin
n. எதிர்நச்சு, நச்சுமுறி.
An`ti*tox"in, An`ti*tox"ine, n. Etym: [Pref. anti- + toxin.] Defn: 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.