柯林斯詞典butter bean (butter beans) 1. N-COUNT Butter beans are the yellowish flat round seeds of a kind of bean plant. They are eaten as a vegetable, and are usually sold dried rather than fresh. 棉豆[usu pl] 返回 butter bean劍橋詞典a large , flat , pale yellow or pale green bean 利馬豆 返回 butter bean