noun
genus of often thorny tropical trees and shrubs and some vines; mainly America
• Syn: ↑Pisonia
• Hypernyms: ↑caryophylloid dicot genus
• Member Holonyms: ↑Nyctaginaceae, ↑family Nyctaginaceae, ↑Allioniaceae, ↑family Allioniaceae, ↑four-o'clock family
• Member Meronyms: ↑cockspur, ↑Pisonia aculeata
Useful english dictionary. 2012.