'beech family' definitions:

Definition of 'beech family'

(from WordNet)
noun
Chiefly monoecious trees and shrubs: beeches; chestnuts; oaks; genera Castanea, Castanopsis, Chrysolepis, Fagus, Lithocarpus, Nothofagus, Quercus [syn: Fagaceae, family Fagaceae, beech family]