Any of various single-stranded RNA viruses comprising the Norwalk virus.
- Genus Norovirus, family Caliciviridae
More example sentences
- Norovirus is the most common cause of infectious gastroenteritis in England and Wales.
- Doctors have warned thousands of people across the UK are suffering from norovirus, which causes sudden vomiting and diarrhoea.
Definition of norovirus in:
- The US English dictionary