di·phyl·leia \ˌdīfəˈlīə, -lē(y)ə\noun Usage: capitalized Etymology: New Latin, from di- + -phylleia (from Greek phyllon leaf) : a small genus of perennial herbs (family Berberidaceae) with a single basal peltate leaf and two cauline leaves all deeply 2-cleft, 6-petaled white flowers, and globose or oblong berries