/ Dictionary / Index C cytomegalovirus: Meaning and Definition of Find definitions for: cy•to•meg•a•lo•vi•rus Pronunciation: (sī"tō-meg"u-lō-vī'rus), [key] — pl. -rus•es. a common virus of the herpesvirus family, usually harmless or causing mild colds but capable of producing severe systemic damage in infected newborns and immunosuppressed persons. Abbr.: CMV Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cytomegalovirus (Thesaurus) cytomegalic cytomembrane Related Content Daily Word Quiz: portent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language