First Known Use: circa 1900
Dictionary
Christmas cactus
noun
Definition of CHRISTMAS CACTUS
: a branching Brazilian cactus (Schlumbergera bridgesii syn. S. buckleyi) having flat jointed stems with scalloped margins and showy usually red, pink, white, violet, or yellow flowers; also : a related cactus (Schlumbergera truncata syn. Zygocactus truncatus) or a hybrid of this and the Christmas cactus
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Origin of CHRISTMAS CACTUS
from its annual blooming around Christmastime
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