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noun
Coextensive with the family Cactaceae: cactuses.
synonym: order Opuntiales.
is a specific kind of: plant order.
has as a member: Cactaceae, cactus family, family Cactaceae.
is a member of: Caryophyllidae, subclass Caryophyllidae.
Find more on opuntiales elsewhere: etymology - rhymes - Wikipedia.
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