Definition of winged bean in US English:

winged bean


  • A tropical Asian pea plant that has four-sided pods with longitudinal flanges. The entire pod and the roots are edible and are noted for their high protein content.

    Psophocarpus tetragonolobus, family Leguminosae

    • ‘On our way we feasted on spicy peanut sauce with crispy rice chips; deep-fried king prawn rolls; herbed green bean salad with winged beans; and nam prik.’
    • ‘No new technology is needed to process the winged bean seed since it is suited to the processing techniques already developed for the soybean.’
    • ‘Better known for its seed pods, green and dried seeds, and edible flowers, the winged bean also has an edible, nitrogen-fixing tuber which can be prepared like a potato.’
    • ‘The dried seeds of winged beans are about 35% protein, which is higher than that of soybeans.’
    • ‘Although the plants are not only unrelated but quite different, the winged pea has often been confused with the winged bean, no doubt partly because the English common names are confusing.’