Definition of guppy noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈɡʌpi//
; NAmE NAmE//ˈɡʌpi//
(pl. guppies) Fish
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a small freshwater fish, commonly kept in aquariums See related entries: Fish Word Origin1920s: named after R. J. Lechmere Guppy (1836–1916), a Trinidadian clergyman who sent the first specimen to the British Museum.
See the Oxford Advanced American Dictionary entry: guppy