The Collaborative International Dictionary of English v.0.48:
lizardfish \lizardfish\, lizard fish \lizard fish\n. (Zool.)
Any of several mostly tropical marine scopeloid fish of the
family Synodontidae having large mouths in lizardlike
heads, especially the inshore lizardfish (Synodus foetens
syn. Synodus poeyi) of Mideastern and Southern United
States and West Indies; -- sometimes called sand pike.
Note: A freshwater perch, the sauger, a different fish, is
also called the sand pike.
Syn: snakefish.
[WordNet 1.5]