WordReference Random House Unabridged Dictionary of American English © 2025
feath•er•back
(feᵺ′ər bak′),USA pronunciation n.
- Fishany freshwater fish of the family Notopteridae, of Asia and western Africa, having a small, feathery dorsal fin and a very long anal fin extending from close behind the head to the tip of the tail.
- feather + back1