Arecidae n 1: one of four subclasses or superorder of Monocotyledones; comprises about 6400 species in 5 families of trees and shrubs and terrestrial herbs and a few free-floating aquatics including: Palmae; Araceae; Pandanaceae and Lemnaceae [syn: {Arecidae}, {subclass Arecidae}]
Arecidae \Arecidae\ n. 1. 1 one of four subclasses or superorder of Monocotyledones; comprises about 6400 species in 5 families of trees and shrubs and terrestrial herbs and a few free-floating aquatics including: Palmae; Araceae; Pandanaceae: and Lemnaceae. Syn: subclass Arecidae [WordNet 1.5] Arecoline