/ Thesaurus / E Synonyms of electron multiplier Find synonyms for: Noun1. electron multiplier, tube, vacuum tube, thermionic vacuum tube, thermionic tube, electron tube, thermionic valveusage: a vacuum tube that amplifies a flow of electronsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: acerbity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language