/ Dictionary / Index D decanal: Meaning and Definition of Find definitions for: dec•a•nal Pronunciation: (dek'u-nl, di-kān'l), [key] — adj. of or pertaining to a dean or deanery: decanal responsibilities. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. decan decane Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language