/ Dictionary / Index P phosphoresce: Meaning and Definition of Find definitions for: phos•pho•resce Pronunciation: (fos"fu-res'), [key] — -resced, -resc•ing. to be luminous without sensible heat, as phosphorus. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: phosphoresce (Thesaurus) phosphor bronze phosphorescence Related Content Daily Word Quiz: opulent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language