(n)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, Syn.Fagopyrum esculentum, Polygonum fagopyrum
n. [ Buck a beech tree + wheat; akin to D. boekweit, G. buchweizen. ] 1. (Bot.) A plant (Fagopyrum esculentum) of the Polygonum family, the seed of which is used for food. [ 1913 Webster ]
2. The triangular seed used, when ground, for griddle cakes, etc. [ 1913 Webster ]