'Rooftree' definitions:

Definition of 'rooftree'

From: WordNet
noun
A beam laid along the edge where two sloping sides of a roof meet at the top; provides an attachment for the upper ends of rafters [syn: ridge, ridgepole, rooftree]

Definition of 'Rooftree'

From: GCIDE
  • Rooftree \Roof"tree`\, n. The beam in the angle of a roof; hence, the roof itself. [1913 Webster]
  • Now for me the woods may wither, now for me the rooftree fall. --Tennyson. [1913 Webster]