/ Thesaurus / Z Synonyms of zygocactus truncatus Find synonyms for: Noun1. crab cactus, Thanksgiving cactus, Zygocactus truncatus, Schlumbergera truncatus, cactususage: South American jointed cactus with usually red flowers; often cultivated as a houseplant; sometimes classified as genus SchlumbergeraWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language