noun
1. a cactus of the genus Ferocactus: unbranched barrel-shaped cactus having deep ribs with numerous spines and usually large funnel-shaped flowers followed by dry fruits
• Hypernyms: ↑cactus
• Member Holonyms: ↑Ferocactus, ↑genus Ferocactus
2. any cactus of the genus Echinocactus; strongly ribbed and very spiny; southwestern United States to Brazil
• Syn: ↑echinocactus
• Hypernyms: ↑cactus
• Hyponyms: ↑hedgehog cactus, ↑golden barrel cactus, ↑Echinocactus grusonii
• Member Holonyms: ↑genus Echinocactus
Useful english dictionary. 2012.