noun
mostly trailing cacti having nocturnal white flowers; tropical America and Caribbean region
• Syn: ↑genus Acanthocereus
• Hypernyms: ↑caryophylloid dicot genus
• Member Holonyms: ↑Cactaceae, ↑family Cactaceae, ↑cactus family
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\\-ˈsirēəs\ nounUsage: capitalized
: a genus of tropical American weak often trailing cacti (family Cactaceae) having nocturnal funnel-shaped white flowers and 3-angled spiny stems — see pitahaya
Useful english dictionary. 2012.