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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

Which is funny, because when I think about cruising, I don’t revisit the miserable 36 hours that norovirus confined us in our cabin.

From Los Angeles Times Jul. 8, 2026

For example, in the case of the cruise with norovirus, the French authorities temporarily prevented anyone from getting off the ship, leaving passengers trapped on the vessel with norovirus.

From Slate May 16, 2026

“You’re more likely to get norovirus in your day-to-day life than you are on a cruise, but people still associate it with cruises,” Adalja said.

From The Wall Street Journal May 9, 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

Since it’s a virus, antibiotics aren’t any help, and there are no antiviral drugs for noroviruses.

From Seattle Times Apr. 7, 2022

It has been used in low- and middle-income countries in the fight to eradicate polio, for instance, and has been proposed as a way to keep tabs on noroviruses, a common cause of stomach bugs.

From New York Times May 7, 2021

Research suggests that some hand sanitizers don’t kill noroviruses, and neither do regular Lysol or Clorox disinfectant wipes.

From Slate Jan. 16, 2017

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