nounpl. (see fish) -·fish·, -·fish·es
any silurid catfish, esp. a very large species (Silurus glanis)
Origin of sheatfishearlier sheath-fish from sheath + fish
nounpl. sheatfish, or sheat·fish·es
A large freshwater catfish (Silurus glanis) of Eurasia, having a wide mouth and long barbels on the upper jaw. Also called wels catfish .
Origin of sheatfishAlteration of obsolete sheathfish sheath ( translation of German Scheide sheath, sheathfish ) fish
(plural sheatfishes or sheatfish)