Noun genus cereus has 1 sense
  1. Cereus, genus Cereus - genus of much-branched treelike or shrubby cacti with pronounced ribs and rounded needlelike spines and nocturnal flowers usually white
    --1 is a kind of caryophylloid dicot genus
    --1 is a member of Cactaceae, family Cactaceae, cactus family
    --1 has members: night-blooming cereus
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