1) Doctorfish 2) Tang 1) Fish 2) Oceanic operator 3) Percoid 4) Percoid fish 5) Percoidean 
any of about 75 species of thin, deep-bodied, tropical marine fishes of the family Acanthuridae (order Perciformes). Surgeonfishes are small-scaled, ... [1 related articles]
a group of brightly colored, oval-shaped coral reef fish that includes tangs; named after the small, sharp scalpel-like projection just ahead of its tail
[n] - brightly colored coral-reef fish with knifelike spines at the tail
noun brightly colored coral-reef fish with knifelike spines at the tail
any tropical, coral-reef fish of the family Acanthuridae, with one or more sharp spines near the base of the tail fin.