grounded receptacle
/ˈɡɹaʊndɪd ɹɪsˈɛptəkəl/
n
English · grounded receptacle中文 · 接地插座Español · contacto con conexión de tierraFrançais · prise avec borne de terre
意味：Device for supplying electricity and ensuring the transfer of the current to the ground in the event of device malfunction; it prevents electrocution.