Exurb

I had my first taste of a collapsing exurb last night.

Source: wiktionary

Lots of cities are exurbs of other cities for reasons of finance or infrastructure.

Source: wiktionary

Miles of exurbs bristle with hundreds—no, thousands—of apartment towers. These monoliths soar like gigantic dominoes into a dust-whitened sky. The area was hand-tilled cornfields when Lui grew up in Xi’an in the 1980s.

Source: wiktionary