The edible starchy root of a North American plant, Pediomelum esculentum of the family Fabaceae (Leguminosae) (also called breadroot); the plant itself.
Origin
Early 19th century; earliest use found in Henry Brackenridge (1786–1871).
Definition of prairie turnip in US English:
prairie turnip
noun
The edible starchy root of a North American plant, Pediomelum esculentum of the family Fabaceae (Leguminosae) (also called breadroot); the plant itself.
Origin
Early 19th century; earliest use found in Henry Brackenridge (1786–1871).