quillback(redirected from quillbacks)
n. pl. quillback or quill·backs
A North American freshwater fish (Carpiodes cyprinus) that has one ray of the dorsal fin extending conspicuously beyond the others.
(Animals) a freshwater fish of the sucker family native to North America, identified by its long, quill-like dorsal fin
n., pl. -backs, (esp. collectively) -back.
a sucker, Carpiodes cyprinus, of the central and eastern U.S., having one ray of the dorsal fin greatly elongated.