virion

noun
vi·ri·on | \ ˈvī-rē-ˌän , ˈvir-ē- \

Definition of virion 

: a complete virus particle that consists of an RNA or DNA core with a protein coat sometimes with external envelopes and that is the extracellular infective form of a virus

Examples of virion in a Sentence

Recent Examples on the Web

This undated electron microscope image made available by the Centers for Disease Control and Prevention shows human immunodeficiency virus particles (virions). Washington Post, "US officials OK option for men with HIV to father children," 1 June 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'virion.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of virion

1959, in the meaning defined above

History and Etymology for virion

French, from virien viral (from virus virus) + -on -on entry 2

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Dictionary Entries near virion

virilization

virilize

virilocal

virion

virl

viroid

Virola

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The first known use of virion was in 1959

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More Definitions for virion

virion

noun
vi·ri·on | \ ˈvī-rē-ˌän , ˈvir-ē- \

Medical Definition of virion 

: a complete virus particle that consists of an RNA or DNA core with a protein coat sometimes with external envelopes and that is the extracellular infective form of a virus

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Britannica.com: Encyclopedia article about virion

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occurring twice a year or every two years

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