/ Thesaurus / I Synonyms of iridoprocne bicolor Find synonyms for: Noun1. white-bellied swallow, tree swallow, Iridoprocne bicolor, swallowusage: bluish-green-and-white North American swallow; nests in tree cavitiesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: penury Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language