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  • mosquito
    mosquito
    noun
    any of numerous dipterous insects of the family Culicidae, the females of which suck the blood of animals and humans, some species transmitting certain diseases, as malaria and yellow fever.
  • Mosquito
    Mosquito
    noun
Synonyms

mosquito

1 American  
[muh-skee-toh] / məˈski toʊ /

noun

mosquitoes, plural mosquitos plural
  1. any of numerous dipterous insects of the family Culicidae, the females of which suck the blood of animals and humans, some species transmitting certain diseases, as malaria and yellow fever.

  2. Military. Mosquito, a twin-engined, two-seat British fighter and bomber of World War II, made largely of plywood and having a top speed of 380 miles per hour (610 km/h).


Mosquito 2 American  
[muh-skee-toh] / məˈski toʊ /

noun

Mosquitos plural
  1. Miskito.


mosquito British  
/ məˈskiːtəʊ /

noun

  1. any dipterous insect of the family Culicidae: the females have a long proboscis adapted for piercing the skin of man and animals to suck their blood See also aedes anopheles culex

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Derived Forms

Etymology

Origin of mosquito

First recorded in 1575–85; from Spanish, equivalent to mosc(a) “fly” (from Latin musca ) + -ito diminutive suffix

Explanation

A mosquito is a tiny stinging insect that leaves an itchy welt on your skin. Between its annoying bites and its ability to spread disease, the mosquito is not the most popular of insects (unlike the fair ladybug). Male mosquitoes feed on nectar and live only a few days, while females need to feed on blood in order for their eggs to develop and be laid. Female mosquitoes, therefore, can be a nuisance on summer evenings, and can even be downright dangerous in tropical areas where they often spread diseases like malaria. In Spanish, mosquito means "little gnat," from mosca, "gnat or fly."

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Urgency to tamp down the invasive mosquito population in California has increased since 2023, when the state logged its first locally acquired dengue cases — meaning people were infected in their communities, not while traveling.

From Los Angeles Times • Jun. 4, 2026

“At peak mosquito season, the number of female mosquitoes was 95.5% lower in release areas compared to non-release areas, with the most geographically isolated neighborhood reaching a 99% reduction,” a 2020 paper reported.

From Los Angeles Times • Jun. 4, 2026

"We used species distribution models of three major mosquito complexes together with paleoclimate models," explains lead author Dr. Margherita Colucci of the Max Planck Institute of Geoanthropology and the University of Cambridge.

From Science Daily • May 3, 2026

The team also launched an interactive public website that lets users explore mosquito movement and behavior.

From Science Daily • Mar. 22, 2026

The worst thing I experienced was heat rash, tiny bumps on my skin that itched at night, along with a handful of mosquito bites.

From "Amina's Song" by Hena Khan

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