: any of a former family (Myxoviridae) of single-stranded RNA viruses that included the orthomyxoviruses and the paramyxoviruses

Word History

Etymology

borrowed from New Latin, from myxo- myxo- + virus virus; so named for their affinity for certain mucins

First Known Use

1954, in the meaning defined above

Time Traveler
The first known use of myxovirus was in 1954

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Cite this Entry

“Myxovirus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/myxovirus. Accessed 21 Mar. 2025.

Medical Definition

: any of the viruses now classified in the families Orthomyxoviridae and Paramyxoviridae that were formerly included in a now rejected family (Myxoviridae)

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