Definition of rotavirus
: any of a genus (Rotavirus) of reoviruses that have a three-layered protein capsid with no outer lipid envelope when mature and that include one (species Rotavirus A) causing epidemics of severe and sometimes fatal diarrhea in infants and young children
Origin and Etymology of rotavirus
New Latin, from Latin rota wheel + New Latin virus
First Known Use: 1974
Medical Definition of rotavirus
1 capitalized : a genus of reoviruses that are causative agents of gastroenteritis and that include one (species Rotavirus A) causing epidemics of severe and sometimes fatal diarrhea in infants and young children ◆Viruses of the genus Rotavirus have a virion with a three-layered protein capsid lacking an outer lipid envelope when mature and a core of 11 discrete segments of double-stranded RNA.
2: any virus of the genus Rotavirus
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