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Any of various cacti of the genus Opuntia of the Americas, having stems with flat or cylindrical jointed segments and small easily detached spines, and including the chollas and the prickly pears.
[Latin (herba) Opūntia, Opuntian (herb), feminine of Opūntius, of Opus, an ancient town of east-central Greece, from OpūsOpūnt-, Opus, from Greek OpousOpount-.]
(Plants) any cactus of the genus Opuntia, esp prickly pear, having fleshy branched stems and green, red, or yellow flowers
[C17: New Latin, from Latin Opuntia (herba) the Opuntian (plant), from Opus, ancient town of Locris, Greece]
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|Noun||1.||Opuntia - large genus of cactuses native to America: prickly pears|
caryophylloid dicot genus - genus of relatively early dicotyledonous plants including mostly flowers
prickly pear, prickly pear cactus - cacti having spiny flat joints and oval fruit that is edible in some species; often used as food for stock