n.
Pronunciation: ( ˌ )p ē - ˌ ko ̇ r-n ə - ' v ī -r ə s
Function: noun
Etymology: pico- + RNA + virus
Date: 1962
: any of a family ( Picornaviridae ) of single-stranded RNA viruses including especially the enteroviruses, the rhinoviruses, and the causative agents of hepatitis A and foot-and-mouth disease