Easter cactus eas·ter·cac·tus uncommon noun 1. spring-blooming South American cactus with oblong joints and coral-red flowers; sometimes placed in genus Schlumbergera SynonymsEaster cactusHatiora gaertneriSchlumbergera gaertneri Related words Broader terms cactus Parts Hatiora WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
