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virus
Organisms that lack an independent metabolism & are incapable of growth or reproduction apart from living cells. Viruses may be infectious. A complete viral particle usually contains DNA or RNA but NOT both & a protein shell or capsid that surrounds the nucleic acid. Viruses range in size for 15 nm up to several hundred nm, thus are generally not visible under light microscopy.
Related
antiviral agent
computer virus
viral culture
viral infection
virus isolation
Specific
bacteriophage
defective virus
DNA virus
hemorrhagic fever virus
metapneumovirus (MPV)
oncogenic virus
oncolytic virus
RNA virus
General
organism
Properties
KINGDOM: virus
References
Stedman's Medical Dictionary 27th ed, Williams &
Wilkins, Baltimore, 1999