guppy

[ guhp-ee ]
/ ˈgʌp i /

noun, plural gup·pies.

a small, freshwater topminnow, Poecilia reticulata, often kept in aquariums.

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Also called rainbow fish.

Origin of guppy

named after R.J.L. Guppy (1836–1916) of Trinidad, who presented specimens to the British Museum; catalogued under the New Latin name Gerardinus guppyi in 1866
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

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British Dictionary definitions for guppy

guppy
/ (ˈɡʌpɪ) /

noun plural -pies

a small brightly coloured freshwater viviparous cyprinodont fish, Lebistes reticulatus, of N South America and the Caribbean: a popular aquarium fish

Word Origin for guppy

C20: named after R. J. L. Guppy, 19th-century clergyman of Trinidad who first presented specimens to the British Museum
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012