/ Dictionary / Index T transamination: Meaning and Definition of Find definitions for: trans•am•i•na•tion Pronunciation: (trans-am"u-nā'shun, tranz-), [key] — n. Biochem., Chem. the transfer of an amino group from one compound to another. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: transamination (Thesaurus) transaminase transannular 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