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pi·cor·na·vi·rus (.)pē-.kȯr-nə-'vī-rəs n any of the family Picornaviridae of single-stranded RNA viruses
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n.
one of a group of small RNA-containing viruses (pico = small; hence pico-RNA-virus). The group includes Coxsackie virus, poliovirus, and rhinovirus.
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pi·cor·na·vi·rus (pi-korґnə-vi″rəs) [pico- + ribonucleic acid + virus] any virus belonging to the family Picornaviridae. picornaviral adjMedical dictionary. 2011.