noun. Any of various fishes that feed on the larvae of mosquitoes, especially a small gambusia (Gambusia affinis) native to Mexico and the eastern United States but widely introduced elsewhere for use in controlling mosquitoes.

noun. A silvery topminnow (Gambusia affinis) with rows of black spots of tropical North America and West Indies; important in mosquito control.

noun. Any of several small fish that feed on mosquitoes, but especially those of the genus Gambusia

noun. silvery topminnow with rows of black spots of tropical North America and West Indies; important in mosquito control

"But I'll tell you one thing: In the quest to buff one's brag sheet, a lot of great books are read, dances are choreographed and in the case of Maryama Diaw and Marjana Chowdhury—a 16-year-old junior and a 17-year-old senior at the Young Women's Leadership School in East Harlem—eastern mosquitofish are dissected."

live-bearer  poeciliid  poeciliid fish  topminnow