Betulaceae

from WordNet (r) 3.0 (2006)

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}, {birch
         family}]

from 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]