/ Dictionary / Index D diaphanometer: Meaning and Definition of Find definitions for: di•aph•a•nom•e•ter Pronunciation: (dī-af"u-nom'i-tur), [key] — n. an instrument for measuring the transparency of a solid, liquid, or gas. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. diaphaneity diaphanous Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language