/ Dictionary / Index D demission: Meaning and Definition of Find definitions for: de•mis•sion Pronunciation: (di-mish'un), [key] — n. abdication. dismissal. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. demisemiquaver demister Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language