Christmas cactus
noun
a cactus, Schlumbergera bridgesii (or Zygocactus bridgesii), native to Brazil, having stems with leaflike segments and showy, purplish-red flowers, and often cultivated as a houseplant.
Origin of Christmas cactus
First recorded in 1895–1900
British Dictionary definitions for christmas cactus
Christmas cactus
noun
a Brazilian cactus, Schlumbergera (formerly Zygocactus) truncatus, widely cultivated as an ornamental for its showy red flowers