Noun echinocactus has 1 sense
  1. echinocactus, barrel cactus - any cactus of the genus Echinocactus; strongly ribbed and very spiny; southwestern United States to Brazil
    --1 is a kind of cactus
    --1 is a member of genus Echinocactus
    --1 has particulars: hedgehog cactus; golden barrel cactus, Echinocactus grusonii
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