Search Result for "virion": 
Wordnet 3.0

NOUN (1)

1. (virology) a complete viral particle; nucleic acid and capsid (and a lipid envelope in some viruses); 



WordNet (r) 3.0 (2006):

virion
    n 1: (virology) a complete viral particle; nucleic acid and
         capsid (and a lipid envelope in some viruses)