/ Thesaurus / B Synonyms of bark louse Find synonyms for: Noun1. bark-louse, bark louse, psocidusage: any of several insects living on the bark of plantsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: aversion Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language