| 释义 | 
		sheat·fish \ˈshētˌfish\ noun Etymology: alteration (perhaps influenced by German schaid sheatfish, from Old High German sceida sheatfish, sheath) of sheathfish  : a large elongated catfish (Silurus glanis) of central and eastern European rivers that may attain a length of 10 feet and a weight of 400 pounds and that lacks an adipose fin and has the long anal nearly confluent with the caudal; broadly  : any of several large catfishes |