Illustration of mosquito
mosquito
noun
mos·qui·to
mə-ˈskē-(ˌ)tō 
plural mosquitoes also mosquitos
: any of a family (Culicidae) of dipteran flies with females that have a set of slender organs in the proboscis adapted to puncture the skin of animals and to suck their blood and that are in some cases vectors of serious diseases
Examples of mosquito in a Sentence
Recent Examples on the Web
In a press conference, Suzman described the foundation’s work to come up with better bed nets and using new technological tools to make it so mosquitoes can’t carry malaria.
—
Kerry A. Dolan, Forbes.com, 9 May 2025
The Herald podcast takes you on a journey through the story of Miami’s first doctor, who arrived in the city in 1896, when mosquitoes and epidemics were the great scourge, Dr. James Jackson.
—Sarah Moreno, Miami Herald, 7 May 2025
There are creatures that can see in infrared (snakes, mosquitoes, bullfrogs) or ultraviolet (bees, birds), and goldfish can perceive both.
—Jennifer Ouellette, ArsTechnica, 22 May 2025
The Centers for Disease Control (CDC) lists different types of insect repellents to reduce insect bites, such as mosquitoes.
—Lauren David, Southern Living, 14 May 2025
See All Example Sentences for mosquito
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Kerry A. Dolan, Forbes.com, 9 May 2025
The Herald podcast takes you on a journey through the story of Miami’s first doctor, who arrived in the city in 1896, when mosquitoes and epidemics were the great scourge, Dr. James Jackson.
—Sarah Moreno, Miami Herald, 7 May 2025
There are creatures that can see in infrared (snakes, mosquitoes, bullfrogs) or ultraviolet (bees, birds), and goldfish can perceive both.
—Jennifer Ouellette, ArsTechnica, 22 May 2025
The Centers for Disease Control (CDC) lists different types of insect repellents to reduce insect bites, such as mosquitoes.
—Lauren David, Southern Living, 14 May 2025
See All Example Sentences for mosquito
Cite this Entry
“Mosquito.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mosquito. Accessed 3 Jun. 2025.
Copy CitationKids Definition
mosquito
noun
mos·qui·to
mə-ˈskēt-ō
plural mosquitoes also mosquitos
: any of numerous two-winged flies of which the females have a needlelike structure of the mouth region adapted to puncture the skin and suck the blood of animals
Etymology
from Spanish mosquito "mosquito," literally "little fly," from mosca "fly"
Medical Definition
mosquito
noun
mos·qui·to
mə-ˈskēt-(ˌ)ō, -ə(-w)
plural mosquitoes also mosquitos
: any of numerous dipteran flies of the family Culicidae that have a rather narrow abdomen, usually a long slender rigid proboscis, and narrow wings with a fringe of scales on the margin and usually on each side of the wing veins, that have in the male broad feathery antennae and mouthparts not fitted for piercing and in the female slender antennae and a set of needlelike organs in the proboscis with which they puncture the skin of animals to suck the blood, that lay their eggs on the surface of stagnant water, that include many species which pass through several generations in the course of a year and hibernate as adults or winter in the egg state, and that include some species which are the only vectors of certain diseases see aedes, anopheles, culex
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