Added 10 October 2026 arecaceae noun Categories: PlantsObscure Words noun ! Definition from WordNet 3.1, Princeton University. More about arecaceae at Wordnik → Where our words come from → Chiefly tropical trees and shrubs and vines usually having a tall columnar trunk bearing a crown of very large leaves; coextensive with the order Palmales. Related Words: palmaceaepalmaephyllanthaceaesapotaceaeasphodelaceaeebenaceaerhizophoraceaemalpighiaceae Back to today's word