/ ˌmetrəˈpɒlɪtən; NAmE -ˈpɑːl-/ adjective [ only before noun ]
1.
(also NAmE informal metro ) connected with a large or capital city :
the New York metropolitan area
metropolitan districts / regions
2.
connected with a particular country rather than with the other regions of the world that the country controls :
metropolitan France / Spain
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WORD ORIGIN
late Middle English (in the ecclesiastical sense): from late Latin metropolitanus , from Greek mētropolitēs citizen of a mother state, from mētropolis mother state, from mētēr , mētr- mother + polis city.