Search Dictionary
Definition of norovirus

norovirus

/ˈnɔːr.oʊˌvaɪ.rəs/
nor · o · vi · rus

Plural:noroviruses
•
Adjective:noroviral
JUMP TO:

norovirus Lexical Profile

norovirus Game Scores & Validity

• noun

1

Any of a genus (Norovirus) of small, non-enveloped RNA viruses of the family Caliciviridae that are the most common cause of acute viral gastroenteritis in humans, typically transmitted via contaminated food, water, or surfaces.


2

A highly contagious gastrointestinal infection caused by a norovirus, characterized by sudden onset of nausea, projectile vomiting, watery diarrhea, and abdominal cramps.

Example

"The cruise ship had to return to port early after a severe outbreak of norovirus sickened hundreds of passengers."

Synonyms
View all synonyms for norovirus

Word Nuance & Usage

Although commonly referred to in everyday speech as the 'stomach flu', norovirus is entirely unrelated to the influenza virus, which causes respiratory illness.

Word Origin & Etymology

Coined in 2002 from a shortened form of 'Norwalk virus'—named after Norwalk, Ohio, where a major outbreak occurred at an elementary school in 1968—combined with 'virus'.

Cite this Entry


Wordmom. (2026). Definition of Norovirus. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/norovirus
Built for writers, students, and competitive word game players, Wordmom combines an uncluttered English dictionary and thesaurus with fast, pattern-based word finders so you can verify definitions, synonyms, and high-scoring tile plays in one place.
Dictionary & Reference
© 2016–2026 Wordmom Network. All rights reserved. Made with for word lovers everywhere.
Disclaimer: SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A. and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. Words With Friends® is a registered trademark of Zynga Inc. Wordle® is a registered trademark of The New York Times Company. Other referenced game titles and tournament lexicon codes (including NASPA NWL and WESPA/HarperCollins CSW) are trademarks of their respective owners. Wordmom is an independent reference utility for educational and entertainment purposes and is not affiliated with, sponsored by, or endorsed by Hasbro, Mattel, Spear, Zynga, The New York Times Company, NASPA, WESPA, or HarperCollins Publishers. All game names are referenced strictly under nominative fair use to indicate compatibility.