Surgeonfish
ahd-5
noun.
Any of various brightly colored tropical marine fishes of the family Acanthuridae, having a laterally compressed body with one or more sharp erectile spines near the base of the tail, and often kept in home aquariums.
Wiktionary, Creative Commons Attribution/Share-Alike License
noun.
Any of many brightly coloured
fishes
, of the family
Acanthuridae
, that have an erect
spine
near the tail
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
brightly colored coral-reef fish with knifelike spines at the tail