metropole


me·tro·pole

M5278750 (mĕt′rə-pōl′)n.1. A colonial or imperial power, considered in relation to its colonies or empire.2. The capital city of such a power.
[French métropole, from Middle French, city having an archiepiscopal seat, capital city of a province, from Old French metropole, from Latin mētropolis, capital city, from Greek, mother city of a colony; see metropolis.]