/ Dictionary / Index T theriac: Meaning and Definition of Find definitions for: the•ri•ac Pronunciation: (thēr'ē-ak"), [key] — n. molasses; treacle. a paste formerly used as an antidote to poison, esp. snake venom, made from 60 or 70 different drugs pulverized and mixed with honey. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Therezina therian 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