[ pi-kawr-nuh-vahy-ruh s, -kawr-nuh-vahy- ]
/ pɪˈkɔr nəˌvaɪ rəs, -ˌkɔr nəˈvaɪ- /

noun, plural pi·cor·na·vi·rus·es.

any of a group of small, RNA-containing viruses of the family Picornaviridae, infectious to humans and other animals, and including the poliovirus and the rhinoviruses that cause the common cold.


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Origin of picornavirus

1960–65; pico- (in the sense “very small”) + RNA + virus
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for picornavirus

/ (ˈpɪˈkɔːnəˌvaɪrəs) /


any one of a group of small viruses that contain RNA; the group includes polioviruses, rhinoviruses, coxsackie viruses, and the virus that causes foot-and-mouth disease

Word Origin for picornavirus

C20: from pico + RNA + virus
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

Medical definitions for picornavirus

[ pē-kôrnə-vī′rəs, pĭ- ]


A virus of the family Picornaviridae.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.