from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A very large freshwater catfish (Silurus glanis) of central and eastern Europe and western Asia.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of several large, freshwater catfish, of the genus Silurus, found in the Danube and other Eastern European rivers.
from the GNU version of the Collaborative International Dictionary of English
- n. A European siluroid fish (Silurus glanis) allied to the cat-fishes. It is the largest fresh-water fish of Europe, sometimes becoming six feet or more in length. See siluroid.
from The Century Dictionary and Cyclopedia
- n. A fish of the family Siluridæ, especially Silurus glanis, the great catfish of central and eastern Europe, the largest fresh-water fish of Europe except the sturgeons, attaining a weight of 300 or 400 pounds.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. large elongated catfish of central and eastern Europe
Alteration of obsolete sheathfish : sheath (translation of German Scheide, sheath, sheathfish) + fish.(American Heritage® Dictionary of the English Language, Fourth Edition)
sheath + fish (Can we verify(+) this etymology?) (Wiktionary)