/ Dictionary / Index D ducal: Meaning and Definition of Find definitions for: du•cal Pronunciation: (d'kul, dy'-), [key] — adj. of or pertaining to a duke or dukedom. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ducal (Thesaurus) duc* ducally Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language