DCHP-1 Online
metropolitanization 
n. the state or condition of being formed into a metropolitan administrative area, as in Metropolitan Toronto.
See also: Metro
- 1955 This newspaper doubts if Vancouver and its neighboring municipalities can afford to ignore the trend toward metropolitanization making itself felt all over the continent.
- 1955 This newspaper doubts if Vancouver and its neighboring municipalities can afford to ignore the trend toward metropolitanization making itself felt all over the continent.