/ Dictionary / Index T transaminase: Meaning and Definition of Find definitions for: trans•am•i•nase Pronunciation: (trans-am'u-nās", -nāz", tranz-), [key] — n. Biochem. any of a class of enzymes, occurring in most plant and animal tissue, that cause transamination. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: transaminase (Thesaurus) Transalpine Gaul transamination 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