/ Dictionary / Index D diaphanous: Meaning and Definition of Find definitions for: di•aph•a•nous Pronunciation: (dī-af'u-nus), [key] — adj. very sheer and light; almost completely transparent or translucent. delicately hazy. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: diaphanous (Thesaurus) diaphanometer diaphone Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language