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norovirus

American  
[nawr-oh-vahy-ruhs] / ˈnɔr oʊˌvaɪ rəs /

noun

  • noroviruses
    plural
  1. any of various single-stranded RNA viruses of the genus Norovirus, of the family Caliciviridae: the most common cause of epidemic viral gastroenteritis in humans.


norovirus British  
/ ˈnɔːrəʊˌvaɪrəs /

noun

  1. a virus which is a common cause of gastroenteritis

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms

Etymology

Origin of norovirus

1970–75; < Nor(walk) virus (with connective -o- )

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Another big difference: Many foodborne illnesses, like norovirus, are highly infectious and spread between humans through something as simple as touching a doorknob.

From The Wall Street Journal Jul. 17, 2026

That’s not even the only cruise in the news right now for public health reasons—a norovirus outbreak on a ship called Ambition recently made dozens of passengers sick shortly after the trip began.

From Slate May 16, 2026

The big outbreaks on cruise ships, outside of COVID, are typically norovirus cases.

From The Wall Street Journal May 8, 2026

Soul legend Lionel Richie was appearing on The One Show in 2012, when he picked up norovirus from presenter Alex Jones.

From BBC Mar. 13, 2026

Like, when Anna got the norovirus last year, Morgan and I reenacted the fight she missed in the lunchroom.

From "Leah on the Offbeat" by Becky Albertalli

It also could include tuberculosis bacteria, measles, seasonal flu, and the noroviruses that cause stomach bugs, Saif and others suggest.

From Science Magazine Oct. 18, 2022

While cholera is caused by bacteria, water transmits viruses too, including hepatitis A and E viruses, rotaviruses, noroviruses and polioviruses.

From Washington Post Sep. 1, 2022

Centers for Disease Control and Prevention cautions that noroviruses can be transmitted by infected people, contaminated food or water, or just by touching contaminated surfaces.

From Seattle Times Apr. 7, 2022

So the idea that grape juice is going to wash triumphantly over vulnerable multiplying noroviruses inside the stomach is wrong on two more levels.

From Slate Jan. 16, 2017

“Cold and flu viruses can survive up to 72 hours on plastic surfaces,” said Dr. Gerba, while noroviruses can survive for two to four weeks.

From New York Times Mar. 2, 2011

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