/ Dictionary / Index T thermogenic: Meaning and Definition of Find definitions for: ther•mo•gen•ic Pronunciation: (thûr"mu-jen'ik), [key] — adj. causing or pertaining to the production of heat. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. thermogenesis thermogeography Related Content Daily Word Quiz: digression Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language