圆盘饰; 插座
Patera \Pat"e*ra\, n.; pl. {Pater[ae]}(?). [ L., fr. patere to lie open.] 1. A saucerlike vessel of earthenware or metal, used by the Greeks and Romans in libations and sacrificies. 2. (Arch.) A circular ornament, resembling a dish, often worked in relief on friezes, and the like.