/ Dictionary / Index T tetanus toxoid: Meaning and Definition of Find definitions for: tet'anus tox'oid Pronunciation: [key] — Pharm. Pharm. an inactivated form of tetanus toxin obtained from Clostridium tetani, used to produce an active immunity to the toxin. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. tetanus tetany Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language