/ Thesaurus / E Synonyms of electron optics Find synonyms for: Noun1. electron optics, electronicsusage: the branch of electronics that deals with beams of electrons and their focusing and deflection by magnetic fieldsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language