/ Dictionary / Index D dermatomyositis: Meaning and Definition of Find definitions for: der•mat•o•my•o•si•tis Pronunciation: (dur-mat"u-mī"u-sī'tis, dûr'mu-tō-), [key] — n. Pathol. an inflammatory disease of connective tissues, manifested by skin inflammation and muscle weakness. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: dermatomyositis (Thesaurus) dermatomycosis dermatophyte Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language