/ Dictionary / Index T transannular: Meaning and Definition of Find definitions for: trans•an•nu•lar Pronunciation: (trans-an'yu-lur, tranz-), [key] — adj. Chem. of or pertaining to tautomerism in cyclic compounds that is characterized by the migration of an atom or group from one position in the ring to another. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. transamination transarctic Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language