The Collaborative International Dictionary of English v.0.48:

Burbot \Bur"bot\, n. [F. barbote, fr. barbe beard. See 1st
   Barb.] (Zool.)
   A fresh-water fish of the genus Lota, having on the nose
   two very small barbels, and a larger one on the chin.
   [Written also burbolt.]
   [1913 Webster]

   Note: The fish is also called an eelpout or ling, and is
         allied to the codfish. The Lota vulgaris is a common
         European species. An American species (Lota maculosa)
         is found in New England, the Great Lakes, and farther
         north.
         [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Eelpout \Eel"pout`\, n. [AS. ?lepute.] (Zo["o]l.)
   (a) A European fish (Zoarces viviparus), remarkable for
       producing living young; -- called also greenbone,
       guffer, bard, and Maroona eel. Also, an American
       species (Z. anguillaris), -- called also mutton fish,
       and, erroneously, congo eel, ling, and lamper eel.
       Both are edible, but of little value.
   (b) A fresh-water fish, the burbot.
       [1913 Webster]

WordNet (r) 3.0 (2006):

eelpout
    n 1: marine eellike mostly bottom-dwelling fishes of northern
         seas [syn: eelpout, pout]
    2: elongate freshwater cod of northern Europe and Asia and North
       America having barbels around its mouth [syn: burbot,
       eelpout, ling, cusk, Lota lota]