/ Dictionary / Index T toxicosis: Meaning and Definition of Find definitions for: tox•i•co•sis Pronunciation: (tok"si-kō'sis), [key] — n. Pathol. an abnormal condition produced by the action of a poison. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. toxicology toxic psychosis Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language