/ Dictionary / Index D Diomede Islands: Meaning and Definition of Find definitions for: Di'o•mede Is'lands Pronunciation: (dī'u-mēd"), [key] two islands in Bering Strait, one belonging to the Russian Federationab. 15 sq. mi. (39 sq. km), and one belonging to the U.S.ab. 4 sq. mi. (10 sq. km): separated by the International Date Line. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. diolefin Diomedes Related Content Daily Word Quiz: digression Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language