Pronunciation: (frôst'fish", frost'-), [key]
—pl. (esp. collectively) -fish, (esp. referring to two or more kinds or species) -fish•es.
1. either of two North American fishes, the tomcod of the Atlantic Ocean or the round whitefish, that appear when frost sets in.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.