icefishEnglishOxford New American Dictionaryicefish /ˈīsˌfiSH, ˈaɪsˌfɪʃ / ▸ noun (plural same or icefishes) 1 a scaleless Antarctic fish of pallid appearance with spiny gill covers and a snout shaped like a duck's bill. Chaenocephalus aceratus, family Chaenichthyidae. 2 another name for capelin. ▸ verb (ice-fish) [no object] fish through holes in the ice on a frozen lake or river: I'm taking a couple of my scouts up to ice-fish, to finish off their fishing merit badge ice-fish for perch.