From WordNet (r) 3.0 (2006) [wn]:
angelfish
n 1: a butterfly fish of the genus Pomacanthus
2: deep-bodied disk-shaped food fish of warmer western Atlantic
coastal waters [syn: spadefish, angelfish,
Chaetodipterus faber]
3: sharks with broad flat bodies and winglike pectoral fins but
that swim the way sharks do [syn: angel shark, angelfish,
Squatina squatina, monkfish]