/ Dictionary / Index P photoemission: Meaning and Definition of Find definitions for: pho•to•e•mis•sion Pronunciation: (fō"tō-i-mish'un), [key] — n. Physics. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: photoemission (Thesaurus) photoelectrotype photoeng. Related Content Daily Word Quiz: belligerent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language