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norovirus Line breaks: noro|virus
Pronunciation: /ˈnɔːrəvʌɪrəs/

Definition of norovirus in English:


1Any of various single-stranded RNA viruses including the Norwalk virus and closely related viruses.
  • Genus Norovirus, family Caliciviridae
Example sentences
  • Norovirus is the most common cause of infectious gastroenteritis in England and Wales.
  • O'Connor noted that the norovirus has many different strains, making it difficult for a person to develop long-lasting immunity to the infection.
  • We are testing some samples and suspect it is norovirus, we should get lab confirmation early this week.
1.1 [mass noun] Gastroenteritis caused by a norovirus: an outbreak of norovirus aboard the ship infected 350 passengers
More example sentences
  • We know Norovirus is now quite widespread in the community.
  • Winter vomiting disease, or norovirus, is a brief illness, which usually lasts for one to three days.
  • The norovirus is highly contagious, affecting up to one million people in the United Kingdom every year.


Early 21st century: from nor- in Norwalk virus + -o- + virus.

Definition of norovirus in:
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