noun
greater metropolitan area; megalopolis; conurbation
Refers to a large urban region that includes a central city and its surrounding suburbs or satellite cities, often used in urban planning and geography contexts.
東京大都市圏の人口は約3700万人です。
The population of the Greater Tokyo Area is about 37 million.
大都市圏では交通渋滞が深刻な問題だ。
Traffic congestion is a serious problem in metropolitan areas.