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variants
or St. Louis encephalitis
: a North American encephalitis that is caused by a flavivirus (species St. Louis encephalitis virus of the genus Flavivirus) transmitted by several culex mosquitoes
Word History
Etymology
St. Louis, Missouri
First Known Use
1934, in the meaning defined above
Time Traveler
The first known use of Saint Louis encephalitis was
in 1934
Dictionary Entries Near Saint Louis encephalitis
Cite this Entry
“Saint Louis encephalitis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Saint%20Louis%20encephalitis. Accessed 29 Mar. 2023.
Medical Definition
Saint Louis encephalitis
noun
Saint Lou·is encephalitis
-ˌlü-əs- 
: a North American encephalitis that is caused by a single-stranded RNA virus of the genus Flavivirus (species Saint Louis encephalitis virus) transmitted by several mosquitoes of the genus Culex
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