WordReference Random House Unabridged Dictionary of American English © 2026
doc•tor•fish
(dok′tər fish′),USA pronunciation n., pl. -fish•es, (esp. collectively) -fish.
- Fisha surgeonfish, esp. Acanthurus chirurgus, of the West Indies, having a bluish body and black tail.
- so named from the knifelike rays on its tail 1825–35