/ Thesaurus / O Synonyms of oral smear Find synonyms for: Noun1. oral smear, alimentary tract smearusage: alimentary tract smear of material obtained from the mouthWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language