/ Dictionary / Index P positive electron: Meaning and Definition of Find definitions for: pos'itive elec'tron Pronunciation: [key] — Physics. Physics. positron. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. positive electricity positive eugenics Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language