/ Dictionary / Index T triphasic: Meaning and Definition of Find definitions for: tri•pha•sic Pronunciation: (trī-fā'zik), [key] — adj. having or existing in three phases. —n. a combination drug given in three phases and eliciting three physiological effects. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. triphammer triphenylmethane Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language