virion n (virology) a complete viral particle; nucleic acid and capsid (and a lipid envelope in some viruses)
News & Articles virion Site Search Avian influenza is caused by influenza A viruses. Enveloped virions are 80 to 120 nm in diameter and 200 to 300 nm long and may be filamentous. Jan. 9, 2014 - Center for Infectious Disease Research and Policy