/ Thesaurus / P Synonyms of pill bug Find synonyms for: Noun1. pill bug, woodlouse, slaterusage: small terrestrial isopod with a convex segmented body that can roll up into a ballWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: bibliophile Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language