Noun: black locust
- Large thorny tree of eastern and central United States having pinnately compound leaves and drooping racemes of white flowers; widely naturalized in many temperate regions
"Black locusts lined the old country road";
- yellow locust, Robinia pseudoacacia
- Strong stiff wood of a black-locust tree; very resistant to decay
"Fence posts made from black locust wood lasted for decades without rotting"
Derived forms: black locusts
Type of: locust, locust tree, wood
Part of: genus Robinia, Robinia
Encyclopedia: Black locust