toxin-antitoxin

(täk′sin an′ti täk′sin)

noun

a mixture of toxin and antitoxin formerly used for producing active immunity against a specific disease, esp. diphtheria: now superseded by toxoids

See toxin-antitoxin in American Heritage Dictionary 4

noun

A mixture of a toxin and its antitoxin with a slight excess of toxin, formerly used as a vaccine.

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toxin-antitoxin medical definition

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