/ Thesaurus / A Synonyms of alpha ray Find synonyms for: Noun1. alpha radiation, alpha ray, corpuscular radiation, particulate radiation, ionizing radiationusage: the radiation of alpha particles during radioactive decayWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: denizen Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language