escutcheon
noun [ C ] uk/ɪˈskʌtʃ.ən/ us/ɪˈskʌtʃ.ən/
孔罩;锁眼盖;门把手盖板
a flat piece of metal around something, for example a key hole or door handle
有花纹的盾，纹章盾
a shield (= flat shape or badge) with a coat of arms (= special symbol of a family, institution, etc.) on it