[pi-kawr-nuh-vahy-ruhs, -kawr-nuh-vahy-]
noun, plural picornaviruses.
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.

1960–65; pico- (in the sense “very small”) + RNA + virus

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World English Dictionary
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
[C20: from pico + RNA + virus]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

picornavirus pi·cor·na·vi·rus (pē-kôr'nə-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.
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Example sentences
The presence of these fragments may be a possible consequence of picornavirus infection.
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