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dollarfish

American  
[dol-er-fish] / ˈdɒl ərˌfɪʃ /

noun

plural

dollarfish,

plural

dollarfishes

  1. butterfish.

  2. moonfish.

dollarfish British  
/ ˈdɒləˌfɪʃ /

noun

  1. any of various fishes that have a rounded compressed silvery body, esp the moonfishes or the American butterfish

"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

Etymology

Origin of dollarfish

First recorded in 1840–50; so called because of its roundish shape and silvery color

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.