ad·zu·ki bean 
(ăd-zkē) or a·zu·ki bean (ə-z-)
(ăd-zkē) or a·zu·ki bean (ə-z-)n.
1. An erect or twining East Asian herb (Vigna angularis) of the pea family, having edible sprouts and reddish seeds used as food and to make flour.
2. A seed of this plant.
[Japanese azuki.]