Palmaceae \Palmaceae\ n.
A natural family of 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}.
Syn: Palmae, family {Palmae}, family {Palmaceae}, Arecaceae,
family {Arecaceae}, palm family.
[WordNet 1.5]