Virion meaning

vī'rē-ŏn', vîr'ē-
A complete viral particle, consisting of RNA or DNA surrounded by a protein shell and constituting the infective form of a virus. The shell, called a capsid , protects the interior core that includes the genome and other proteins. After the virion binds to the surface of a specific host cell, its DNA or RNA is injected into the host cell and viral replication occurs with eventual spread of the infection to other host cells.
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A complete viral particle, consisting of RNA or DNA surrounded by a protein shell and constituting the infective form of a virus.
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The complete, mature, infectious form of a virus when it is outside a host cell.
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A complete viral particle, consisting of RNA or DNA surrounded by a protein shell and constituting the infective form of a virus.
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(virology) A single individual particle of a virus (the viral equivalent of a cell).
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Origin of virion

  • vir(us) –on
    From American Heritage Dictionary of the English Language, 5th Edition