norovirus

noun
nor·​o·​virus | \ ˈnȯr-ə-ˌvī-rəs How to pronounce norovirus (audio) \

Definition of norovirus

: any of a genus (Norovirus) of small, round, single-stranded RNA viruses that includes a single species (species Norwalk virus) with various strains causing gastroenteritis in people and animals (such as cows, pigs, and dogs) People spread the virus by eating food or drinking liquids that are contaminated with norovirus, touching surfaces or objects contaminated with norovirus and then touching their mouth or having direct contact with another person who is infected.— Cherie Black

Note: In people, noroviruses cause gastroenteritis marked chiefly by sudden onset diarrhea, vomiting, nausea, and abdominal cramps.

— see norwalk virus

Examples of norovirus in a Sentence

Recent Examples on the Web To not only ward off Covid-19, but also common viral infections like influenza, the common cold, MRSA and the norovirus, cleaning and disinfecting your home is still absolutely necessary. Victoria Uwumarogie, Essence, 4 June 2021 Cruise lines have long contended with outbreaks of the norovirus, for instance, one of which sickened more than 300 passengers and crew on a Princess Cruises ship in February 2020. Kate Gibson, CBS News, 7 May 2021 Cruise lines have long contended with outbreaks of the norovirus, for instance, one of which sickened more than 300 passengers and crew on a Princess Cruises ship in February 2020. Kate Gibson, CBS News, 7 May 2021 In 2019, the California Department of Public Health closed Tomales Bay due to a norovirus outbreak that sickened at least 44 people and was associated with oysters from that area. Elena Kadvany, San Francisco Chronicle, 14 May 2021 Cruise lines have long contended with outbreaks of the norovirus, for instance, one of which sickened more than 300 passengers and crew on a Princess Cruises ship in February 2020. Kate Gibson, CBS News, 7 May 2021 Cruise lines have long contended with outbreaks of the norovirus, for instance, one of which sickened more than 300 passengers and crew on a Princess Cruises ship in February 2020. Kate Gibson, CBS News, 30 Apr. 2021 Cruise lines have long contended with outbreaks of the norovirus, for instance, one of which sickened more than 300 passengers and crew on a Princess Cruises ship in February of 2020. Kate Gibson, CBS News, 26 Mar. 2021 Still, Puradigm’s devices have been shown to work against a long list of contaminants that food companies were already worried about, including E. coli, Salmonella, Listeria and the norovirus. Larissa Zimberoff, Bloomberg.com, 18 Sep. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'norovirus.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of norovirus

2002, in the meaning defined above

History and Etymology for norovirus

New Latin, from English Norwalk virus + New Latin -o- + virus

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Time Traveler for norovirus

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The first known use of norovirus was in 2002

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Statistics for norovirus

Last Updated

12 Jun 2021

Cite this Entry

“Norovirus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/norovirus. Accessed 17 Jun. 2021.

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More Definitions for norovirus

norovirus

noun
nor·​o·​virus | \ ˌnȯr-ō-ˈvī-rəs How to pronounce norovirus (audio) \

Medical Definition of norovirus

1 capitalized : a genus of small, round, single-stranded, highly infectious RNA viruses that includes a single species (species Norwalk virus) with various strains causing gastroenteritis in people and animals (such as cows and dogs)
2 : any virus of the genus Norovirus People spread the virus by eating food or drinking liquids that are contaminated with norovirus, touching surfaces or objects contaminated with norovirus and then touching their mouth or having direct contact with another person who is infected.— Cherie Black, The Seattle Post-Intelligencer, 29 Dec. 2006

Note: In people, noroviruses cause gastroenteritis marked chiefly by sudden onset, diarrhea, vomiting, nausea, and abdominal cramps.

— see norwalk virus

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