1) Animal virus 1) Enterovirus 2) Rhinovirus 
A picornavirus is a virus belonging to the family Picornaviridae. Picornaviruses are non-enveloped, positive-stranded RNA viruses with an icosahedral capsid. The genome RNA is unusual because it has a protein on the 5` end that is used as a primer for transcription by RNA polymerase. The name is derived from pico, meaning small, and RNA, referrin....
any of a group of viruses constituting the family Picornaviridae, a large group of the smallest known animal viruses, `pico` referring to small size ... [2 related articles]
A virus of the family Picornaviridae. ... (05 Mar 2000) ... 
(pi-kor´nә-vi″rәs) any virus of the family Picornaviridae.
Type: Term Pronunciation: pī-kōr′nă-vī′rŭs Definitions: 1. A virus of the family Picornaviridae.
[n] - a group of single-strand RNA viruses with a protein coat
noun a group of single-strand RNA viruses with a protein coat