Cytomegalovirus

from WordNet (r) 3.0 (2006)

cytomegalovirus
    n 1: any of a group of herpes viruses that enlarge epithelial
         cells and can cause birth defects; can affect humans with
         impaired immunological systems [syn: {cytomegalovirus},
         {CMV}]

from The Collaborative International Dictionary of English v.0.48

Herpesvirus \Her"pes*vir`us\, n. (Med.)
   any of several dozen DNA-containing virus of the family
   {Herpetoviridae}, including among them such
   human-disease-causing agents as {Herpes simplex virus}
   causing oral and genital {herpes}, {varicella-zoster virus}
   ({Herpes zoster virus}) causing shingles and chickenpox
   (varicella), {Epstein-Barr virus} (EB virus) causing
   infectious mononucleosis, and {Cytomegalovirus}.
   [PJC]