/ Dictionary / Index Q quillback: Meaning and Definition of Find definitions for: quill•back Pronunciation: (kwil'bak"), [key] — pl. -backs, -back. a carpsucker, Carpiodes cyprinus, inhabiting waters in the central and eastern U.S., having one ray of the dorsal fin greatly elongated. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. quillai bark quill driver Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language