mos·qui·to·fish

[muh-skee-toh-fish]
noun, plural ( especially collectively ) mos·qui·to·fish ( especially referring to two or more kinds or species ) mos·qui·to·fish·es.
any of several fishes that feed on mosquito larvae, as Gambusia affinis, found in the southeastern U.S., now introduced into other parts of the world for mosquito control.
Also, mosquito fish.


Origin:
1925–30; mosquito + fish

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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WordNet
mosquitofish

noun
silvery topminnow with rows of black spots of tropical North America and West Indies; important in mosquito control 
WordNet® 3.0, © 2006 by Princeton University.
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00:10
Mosquitofish is always a great word to know.
So is bezoar. Does it mean:
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
Example sentences
Mosquitofish can be used in permanent water sources such as ponds, fountains, bird baths and ditches to control mosquito breeding.
Today, these have been largely replaced by introduced species such as the common carp, yellow bullhead and mosquitofish.
Mosquitofish may be stocked by technicians without special permits.
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