The definition of a legume is a pod or pea plant, or the seed of such a plant.
(noun)An example of a legume is a bean.
See legume in Webster's New World College Dictionary
noun
Origin: Fr légume < L legumen, lit., anything that can be gathered < legere, to gather: see logic
See legume in American Heritage Dictionary 4
noun
Origin:
Origin: French légume
Origin: , from Latin legūmen, bean
.Learn more about legume