Breadcrumb Home > Thesaurus > P Synonyms of photoelectron Find synonyms for: Noun1. photoelectron, electron, negatronusage: an electron that is emitted from an atom or molecule by an incident photonWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of photoelectron (Dictionary) ✖ Related Content Daily Word Quiz: sepulture Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language