• synonyms


[nawr-oh-vahy-ruh s]
noun, plural nor·o·vi·rus·es
  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.
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Origin of norovirus

1970–75; < Nor(walk) virus (with connective -o-)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for norovirus


  1. a virus which is a common cause of gastroenteritis
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Word Origin

C20: from Norwalk, Ohio, site of an outbreak in 1968
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