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toxin-antitoxin

   Also found in: Dictionary/thesaurus, Encyclopedia 0.07 sec.
toxin-antitoxin /tox·in-an·ti·tox·in/ (TA) (tok″sin-an´tĭ-tok″sin) a nearly neutral mixture of diphtheria toxin with its antitoxin; used for diphtheria immunization.
toxin-antitoxin
n.
A mixture of a toxin and its antitoxin with a slight excess of toxin, formerly used as a vaccine.

toxin-antitoxin
Etymology: Gk, toxikon, poison, anti, against, toxikon
a mixture of toxin and antitoxin. Diphtheria toxin-antitoxin was formerly used for active immunization.


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