- صِيْغَةُ جَمْعٍ مُفْرَدُهَا megalopolis.
- 1967: All the megalopoli of the future—in this country and elsewhere—will transcend national boundaries in many ways. — William Rudolph Ewald, Environment for Man: The Next Fifty Years (Indiana 1967, p. 140)
- 1972: This problem has been made more serious in the contemporary city by the emergence of a new form of spatial ordering in the form of sprawling megalopoli — David Harvey, Society, the City, and the Space-economy of Urbanism (Association of American Geographers 1972, p. 14)
- 1976: With these developments came urbanization and centralization, which trends have culminated in the mega-farms and megalopoli of the present. — Robert Theobald, Beyond Despair (Michigan 1976, p. 153)
- 1997: The population of megalopoli like Mexico City and Sao Paulo will be well over 20 million by the end of the 20th century — Stephen Metz, Strategic Horizons (Diane Publishing 1997, p. 9)
- 1998: Table 20. Present and Projected Megalopoli (more than 10 million inhabitants [...]) — John M. Collins, Military Geography (Diane Publishing, p. 199)