toxin-antitoxin

[ tok-sin-an-ti-tok-sin, -an-tee-, -an-ti-tok-sin, -an-tee- ]

noun

, Immunology.

1. a mixture of toxin and antitoxin, formerly used to induce active immunity against certain diseases, especially diphtheria.

toxin-antitoxin

noun

1. a mixture of a specific toxin and antitoxin. The diphtheria toxin-antitoxin was formerly used in the US for active immunization

Word History and Origins

Origin of toxin-antitoxin¹

First recorded in 1900–05