Bread·root n. Bot. The root of a leguminous plant (Psoralea esculenta), found near the Rocky Mountains. It is usually oval in form, and abounds in farinaceous matter, affording sweet and palatable food.
  Note: ☞ It is the Pomme blanche of Canadian voyageurs.
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  breadroot
       n : densely hairy perennial of central North America having
           edible tuberous roots [syn: Indian breadroot, pomme
           blanche, pomme de prairie, Psoralea esculenta]