Source: The Collaborative International Dictionary of English v.0.48
Betulaceae \Betulaceae\ n.
1. a natural family of monoecious trees and shrubs, including
the genera Betula; Alnus; Carpinus; Corylus;
Ostrya; and Ostryopsis.
Syn: family Betulaceae, birch family.
[WordNet 1.5]
Betulaceae
n 1: monoecious trees and shrubs (including the genera Betula
and Alnus and Carpinus and Corylus and Ostrya and
Ostryopsis) [syn: Betulaceae, family Betulaceae, birchfamily]