[ buht-er-flahy-fish ]
/ ˈbʌt ərˌflaɪˌfɪʃ /

noun, plural (especially collectively) but·ter·fly·fish·es, (especially referring to two or more kinds or species) but·ter·fly·fish.

any tropical marine fish of the family Chaetodontidae, having large, broad fins or brilliant coloration, or both.
a blenny, Blennius ocellaris, of Europe.

Origin of butterflyfish

First recorded in 1730–40; butterfly + fish
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for butterflyfish



any small tropical marine percoid fish of the genera Chaetodon, Chelmon, etc, that has a deep flattened brightly coloured or strikingly marked body and brushlike teeth: family ChaetodontidaeSee also angelfish (def. 1)
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