The Collaborative International Dictionary of English v.0.48:
damselfish \damselfish\ n. small brilliantly colored tropical marine fishes of coral reefs. Syn: demoiselle. [WordNet 1.5]WordNet (r) 3.0 (2006):
damselfish n 1: small brilliantly colored tropical marine fishes of coral reefs [syn: damselfish, demoiselle]