From WordNet (r) 2.0 (August 2003) [wn]:
moray
n : family of brightly colored voracious eels of warm coastal
waters; generally nonaggressive to humans but larger
species are dangerous if provoked [syn: moray eel]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Moray \Mor"ay\, n. (Zool.)
A muraena.
[1913 Webster]