| Christmas cactus | |
| —n | |
| a Brazilian cactus, Schlumbergera (formerly Zygocactus) truncatus, widely cultivated as an ornamental for its showy red flowers | |
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
| Main Entry: | Christmas cactus |
| Part of Speech: | n |
| Definition: | succulent South American plant with red, pink, or white flowers, grown as a houseplant |
| Etymology: | Schlumbergera bridgesii |