noun \(ˌ)pē-ˌkr-nə-ˈvī-rəs\

Definition of PICORNAVIRUS

:  any of a family (Picornaviridae) of small single-stranded RNA viruses that include the causative agents of encephalomyocarditis, hepatitis A, poliomyelitis, foot-and-mouth disease, and hand, foot and mouth disease — compare coxsackie virus, echovirus, enterovirus, rhinovirus


pico- + RNA + virus
First Known Use: 1962


noun \(ˌ)pē-ˌkr-nə-ˈvī-rəs\   (Medical Dictionary)

Medical Definition of PICORNAVIRUS

: any of the family Picornaviridae of single-stranded RNA viruses


noun    (Concise Encyclopedia)

Any of a group of the smallest known animal viruses. (Pico refers to their small size, rna to their core of RNA.) This group of spheroidal viruses includes viruses that attack the vertebrate intestinal tract and often invade the central nervous system as well (such as polioviruses), viruses that infect tissues in the vertebrate nose (rhinoviruses), and the virus agent of foot-and-mouth disease.


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