noun, plural deal·fish·es, (especially collectively) deal·fish.
a ribbonfish, especially Trachipterus arcticus.
Origin of dealfish
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
noun plural -fish or -fishes
any deep-sea teleost fish of the genus Trachipterus, esp T. arcticus, related to the ribbonfishes and having a very long tapelike body and a fan-shaped tail fin
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