The phrase "a massive population" is correct and usable in written English.
It can be used when referring to a large number of people living in a specific area or country.
Example: "The city has a massive population, making it one of the most densely populated urban areas in the world."
Alternatives: "a large population" or "an enormous population".
One is a massive population explosion across the Arab world.
"Katrina entailed a massive population displacement that basically emptied out the city," she added.
The city experienced a massive population expansion in the 20th century caused by migration from rural areas, and large residential developments were constructed to keep up with the demand for housing.
That we're in the midst of a massive population explosion, a credit crisis, there's climate chaos, poverty, unprecedented loss of species, loss of open wild space, resource depletion and growing dead zones and yet we still act slowly, if at all.
Subianto though, went a step further and said Australia had a "phobia" of Indonesia Maybe we as a nation with a massive population, they may consider us to be emotional (and) we have carried out several military actions, so I think they perhaps consider us a threat.
Or it was pulled there by a massive population of planetary "embryos" that may have inhabited the early solar system but were later expelled.
Initial studies showed that the LW radiation from a single massive Population III star is sufficient to prevent further cooling and star formation in the halo in which the star formed (Omukai and Nishi 1999; Nishi and Tashiro 2000; Glover and Brand 2001).
Economic change came as a result of massive population shifts and the social reorganization of labour rather than technological improvement.
Chimpanzees, unlike modern humans, have not experienced a species wide massive population bottleneck and harbor more genetic variation than humans.
One great thing about South Africa is the massive immigrant population – we have a massive Portuguese population, a massive Italian community, but I think if Ghana get through tonight you will see a lot of Black Stars fans out there tomorrow".
Overall, the PAR record suggests that following an early Holocene massive population increase on the northern slopes of the Retezat, the spruce population size did not remain constant, but showed marked fluctuation with three clear population bottlenecks dated to ca. 9180, 7200 and 2200 cal yr BP.
