/ Thesaurus / S Synonyms of subatomic particle Find synonyms for: Noun1. particle, subatomic particle, bodyusage: a body having finite mass and internal structure but negligible dimensionsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: effervescent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language