/ Dictionary / Index D Delium: Meaning and Definition of Find definitions for: De•li•um Pronunciation: (dē'lē-um), [key] — n. an ancient seaport in Greece, in Boeotia: the Boeotians defeated the Athenians here 424 b.c. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. delitescent Delius Related Content Daily Word Quiz: nonchalant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language