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guppy |ˌgʌpi| noun ( pl. -pies)
a small, livebearing freshwater fish widely kept in aquariums. Native to tropical America, it has been introduced elsewhere to control mosquito larvae. • Poecilia reticulata, family Poeciliidae.
ORIGIN 1920s: named after R. J. Lechmere Guppy (1836–1916), a Trinidadian clergyman who sent the first specimen to the British Museum.
