Rift Valley fever

noun

Definition of Rift Valley fever

: an acute, usually epizootic, mosquito-borne disease of domestic animals chiefly of eastern and southern Africa that is caused by a bunyavirus (species Rift Valley fever virus of the genus Phlebovirus), is marked especially by fever, abortion, and death of newborns, and is sometimes transmitted to humans usually in a milder form marked by flu-like symptoms

First Known Use of Rift Valley fever

circa 1931, in the meaning defined above

History and Etymology for Rift Valley fever

(Great) Rift Valley, Africa

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Time Traveler for Rift Valley fever

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The first known use of Rift Valley fever was circa 1931

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Cite this Entry

“Rift Valley fever.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/Rift%20Valley%20fever. Accessed 13 December 2019.

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More Definitions for Rift Valley fever

Rift Valley fever

noun
Rift Val·​ley fever | \ ˈrift-ˌval-ē- How to pronounce Rift Valley fever (audio) \

Medical Definition of Rift Valley fever

: an acute usually epizootic mosquito-borne disease of domestic animals (as sheep and cattle) chiefly of eastern and southern Africa that is caused by a bunyavirus of the genus Phlebovirus (species Rift Valley fever virus), is marked especially by fever, abortion, death of newborns, diarrhea, and jaundice, and is sometimes transmitted to humans usually in a milder form marked by flu-like symptoms

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