/ Dictionary / Index R radiculitis: Meaning and Definition of Find definitions for: ra•dic•u•li•tis Pronunciation: (ra-dik"yu-lī'tis), [key] — n. Pathol. inflammation of a spinal nerve root. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: radiculitis (Thesaurus) radicular radii Related Content Daily Word Quiz: modify Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language