Definition from Wiktionary, the free dictionary
See also légume
- IPA: /lɪˈɡjuːm/, /ˈlɛɡjuːm/
legume (plural legumes)
- The fruit or seed of leguminous plants (as peas or beans) used for food.
- Any of a large family (Leguminosae syn. Fabaceae) of dicotyledonous herbs, shrubs, and trees having fruits that are legumes or loments, bearing nodules on the roots that contain nitrogen-fixing bacteria, and including important food and forage plants (as peas, beans, or clovers).
- A pod dehiscent into two pieces or valves, and having the seed attached at one suture, as that of the pea.
Derived terms 
fruit or seed of leguminous plants
member of Leguminosae family
From Latin legūmen.
legume m (plural legumi)