buckwheat buckwheat /ˈbʌˌkwiːt/

noun

1. Grain ground into flour  ( buckwheat )
   grain ground into flour
    The baker used buckwheat flour to make a gluten-free bread.
   The baker used buckwheat flour to make a gluten-free bread.
   
   
2. A member of the genus Fagopyrum; annual Asian plant with clusters of small pinkish white flowers and small edible triangular seeds which are used whole or ground into flour  ( buckwheat , Fagopyrum esculentum , Polygonum fagopyrum )
   a member of the genus Fagopyrum; annual Asian plant with clusters of small pinkish white flowers and small edible triangular seeds which are used whole or ground into flour