/ Thesaurus / C Synonyms of cleistes Find synonyms for: Noun1. Cleistes, genus Cleistes, monocot genus, liliopsid genususage: terrestrial orchids of North and South America having slender fibrous roots; allied to genus PogoniaWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language