Definition of: poplar

(pop′lər) noun
1. Any of a genus (Populus) of dioecious trees and bushes of the willow family, widely distributed in the northern hemisphere; especially, the white or silver poplar (P. alba) or the Lombardy poplar (P. nigra).
2. The wood of any of these trees.
3. Any one of several trees in some way resembling a poplar: the Queensland poplar (Homalanthus populifolius) of tropical Australia, and the western, white, or yellow poplar of the United States, more properly called tuliptree. [<OF poplier <L populus]