(n)chiefly monoecious trees and shrubs: beeches; chestnuts; oaks; genera Castanea, Castanopsis, Chrysolepis, Fagus, Lithocarpus, Nothofagus, Quercus, Syn.beech family, family Fagaceae
The Collaborative International Dictionary of English (GCIDE) v.0.53Collaborative International Dictionary (GCIDE)
prop. n. a natural family of chiefly monoecious trees and shrubs, including beeches, chestnuts, and oaks; it includes the genera Castanea; Castanopsis; Chrysolepis; Fagus; Lithocarpus; Nothofagus; and Quercus. Syn. -- family Fagaceae, beech family. [ WordNet 1.5 ]