The Collaborative International Dictionary of English v.0.48:

Moray \Mor"ay\, n. (Zool.)
   A muraena.
   [1913 Webster]

WordNet (r) 3.0 (2006):

moray
    n 1: family of brightly colored voracious eels of warm coastal
         waters; generally nonaggressive to humans but larger
         species are dangerous if provoked [syn: moray, moray
         eel]