/ Dictionary / Index R ringworm: Meaning and Definition of Find definitions for: ring•worm Pronunciation: (ring'wûrm"), [key] — n. Pathol. any of a number of contagious skin diseases caused by certain parasitic fungi and characterized by the formation of ring-shaped eruptive patches. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ringworm (Thesaurus) Ringwood rink Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language