megalopoli
megalopolis
noun meh-gah-LOH-poh-lee Rare
Origin: Greek megas (great) + polis (city)
Also means
megacity
Usage Note
Megalopoli is an invariable noun — its plural is also megalopoli: le megalopoli asiatiche. It is feminine: la megalopoli. It denotes a vast urban agglomeration formed by the merging of multiple cities and their suburbs. The word entered Italian from English urban-geography terminology in the 20th century.
Examples
"Tokyo è una delle maggiori megalopoli del mondo."
Natural Translation
Tokyo is one of the largest megalopolises in the world.

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