/ Thesaurus / I Synonyms of ion pump Find synonyms for: Noun1. ion pump, air pump, vacuum pumpusage: a vacuum pump that removes gas by ionizing the atoms or molecules and adsorbing them on a metal surfaceWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language