WordNet (r) 3.0 (2006):

legume family
    n 1: a large family of trees, shrubs, vines, and herbs bearing
         bean pods; divided for convenience into the subfamilies
         Caesalpiniaceae; Mimosaceae; Papilionaceae [syn:
         Leguminosae, family Leguminosae, Fabaceae, family
         Fabaceae, legume family, pea family]