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Cephalocereus
noun
Ceph·a·lo·cereus
Definition of Cephalocereus
: a large genus of tropical American cacti (family Cactaceae) having usually columnar erect stems topped with white wool, no leaves, and showy nocturnal flowers and including the old-man cactus
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Origin and Etymology of cephalocereus
New Latin, from cephal- + Cereus
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