The story
Blend of micro- (prefix meaning ‘very small’) + metropolitan.
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: Of or pertaining to a city or twin cities having at least 10,000 but fewer than 50,000 inhabitants; of a city: less populated than a metropolitan area but more than a rural one. Full definition →
Blend of micro- (prefix meaning ‘very small’) + metropolitan.
Etymology from Wiktionary, CC BY-SA 4.0.