conurbation
noun/ˌkɒnəˈbeɪʃn/
/ˌkɑːnərˈbeɪʃn/
(formal)- a large area where towns have grown and joined together, often around a city
- The region has several medium-sized towns and cities, but no major conurbations.
Word Originearly 20th cent.: from con- ‘together’ + Latin urbs, urb- ‘city’ + -ation.
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conurbation