1926 Nov. 410/1 It is also possible to determine the size of the infective virus particle.
1968 24 244/2 They [sc. the results] are consistent with the inactivation of a virus particle by a single interaction with radiation.
2001 D. MacCall et al. ix. 100 Virus particles that do not have an envelope are composed of only the capsid and nucleic acid. They are called..naked viruses.