/ Dictionary / Index D diamondiferous: Meaning and Definition of Find definitions for: dia•mond•if•er•ous Pronunciation: (dī"mun-dif'ur-us, dī"u-), [key] — adj. containing or yielding diamonds for mining. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Diamond Head diamond jubilee 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