2 definitions
for osage orange
From The Collaborative International Dictionary of English v.0.48 :
Osage orange \O"sage or"ange\ (Bot.)
An ornamental tree of the genus Maclura ({Maclura
aurantiaca), closely allied to the mulberry ({Morus}); also,
its fruit. The tree was first found in the country of the
Osage Indians, and bears a hard and inedible fruit of an
orangelike appearance. See Bois d'arc.
[1913 Webster]
From WordNet (r) 2.0 :
osage orange
n : small shrubby deciduous yellowwood tree of south central
United States having spines, glossy dark green leaves and
an inedible fruit that resembles an orange; its hard
orange-colored wood used for bows by native Americans;
frequently planted as boundary hedge [syn: bow wood, mock
orange, Maclura pomifera]