/ Dictionary / Index S spondylosis: Meaning and Definition of Find definitions for: spon•dy•lo•sis Pronunciation: (spon"dl-ō'sis), [key] — n. Pathol. immobility and fusion of vertebral joints. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. spondylolisthesis sponge Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language