noun Date: circa 1828 a very large city, a thickly populated region centering in a metropolis or embracing several metropolises, megalopolitan noun or adjective
MEGALOPOLIS
Meaning of MEGALOPOLIS in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012