/ Dictionary / Index D duck-billed dinosaur: Meaning and Definition of Find definitions for: duck'-billed di'nosaur Pronunciation: (duk'bild"), [key] hadrosaur. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. duckbill duckboard Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language