1. 大きな二回羽状の葉と緑がかった白い花とその種がコーヒーの代用食品として使われる大きく木質の褐色の莢を持つ北アメリカ中東部のりっぱな高木(handsome tree of central and eastern North America having large bipinnate leaves and green-white flowers followed by large woody brown pods whose seeds are used as a coffee substitute)