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frostfish

American  
[frawst-fish, frost-] / ˈfrɔstˌfɪʃ, ˈfrɒst- /

noun

plural

frostfish,

plural

frostfishes

  1. either of two North American fishes, the tomcod of the Atlantic Ocean or the round whitefish, that appear when frost sets in.

  2. cutlassfish.

Etymology

Origin of frostfish

An Americanism dating back to 1625–35; frost + fish

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.