Definition of culex
: any of a large cosmopolitan genus (Culex) of mosquitoes that includes the common house mosquito (C. pipiens) of Europe and North America and vectors of the viruses causing Saint Louis encephalitis and West Nile virus
Recent Examples of culex from the Web
Though no mosquitoes carrying the West Nile virus have been found or human cases reported thus far in Kane County, Schlueter said that current hot and humid conditions are those in which the culex mosquito, which carries that disease, thrive.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'culex'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of culex
New Latin, from Latin, gnat; akin to Old Irish cuil fly
First Known Use: 15th centurySee Words from the same year
Medical Definition of culex
1 capitalized : a large cosmopolitan genus of mosquitoes that includes the common house mosquito (C. pipiens) of Europe and North America, a widespread tropical mosquito (C. quinquefasciatus synonym C. fatigans) which transmits some filarial worms parasitic in humans, and other mosquitoes which are vectors of the viruses causing Japanese B encephalitis, Murray Valley encephalitis, Saint Louis encephalitis, and West Nile fever
2: a mosquito of the genus Culex
culicine\ˈkyü-lə-ˌsīn\play adjective or noun
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