Dictionary
an•ti•tox•in
Pronunciation: (an"ti-tok'sin, an"tē-), [key]—
n.
1. a substance, formed in the body, that counteracts a specific toxin.
2. the antibody formed in immunization with a given toxin, used in treating certain infectious diseases or in immunizing against them.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.