/ Thesaurus / I Synonyms of ionizing radiation Find synonyms for: Noun1. ionizing radiation, radiationusage: high-energy radiation capable of producing ionization in substances through which it passesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: dissonant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language