/ Dictionary / Index L lyolysis: Meaning and Definition of Find definitions for: ly•ol•y•sis Pronunciation: (lī-ol'u-sis), [key] — n. Chem. solvolysis. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lyocratic Lyon Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language