/ Dictionary / Index D Demon Star: Meaning and Definition of Find definitions for: De'mon Star" Pronunciation: [key] — Astron. Astron. Algol. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. demonology demonstrable Related Content Daily Word Quiz: apogee Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language