population explosion

noun

1. the rapid increase in numbers of a particular species, especially in the world's human population since the end of World War II, attributed to an accelerating birthrate, a decrease in infant mortality, and an increase in life expectancy.

population explosion

noun

1. a rapid increase in the size of a population caused by such factors as a sudden decline in infant mortality or an increase in life expectancy

Word History and Origins

Origin of population explosion¹

An Americanism dating back to 1950–55