/ Dictionary / Index L lycine: Meaning and Definition of Find definitions for: ly•cine Pronunciation: (lī'sēn), [key] — n. Chem. betaine. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Lycian lycopene Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language