NOUN (2)

1. young eel; may be sauteed or batter-fried;

2. young eel;

The Collaborative International Dictionary of English v.0.48:

Elver \El"ver\, n. (Zo["o]l.)
   A young eel; a young conger or sea eel; -- called also
   elvene.
   [1913 Webster]

WordNet (r) 3.0 (2006):

elver
    n 1: young eel; may be sauteed or batter-fried
    2: young eel