noun
genus of slender often treelike spiny cacti with solitary showy nocturnal white or pink flowers; Florida and Caribbean to South America
• Syn: ↑Harrisia
• Hypernyms: ↑caryophylloid dicot genus
• Member Holonyms: ↑Cactaceae, ↑family Cactaceae, ↑cactus family
Useful english dictionary. 2012.