/meuh skee"toh fish'/ , n. , pl. ( esp. collectively ) mosquitofish , ( esp. referring to two or more kinds or species ) mosquitofishes .
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.
[ 1925-30; MOSQUITO + FISH ]