/ Dictionary / Index T tripinnate: Meaning and Definition of Find definitions for: tri•pin•nate Pronunciation: (trī-pin'āt), [key] — adj. Bot. bipinnate, as a leaf, with the divisions also pinnate. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tripinnate (Thesaurus) triphyllous Tripitaka Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language