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.
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

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    noun 1. the branch of genetics concerned with the hereditary makeup of populations. 2. the study of changes in gene frequencies in population of organisms and the effects of such changes on evolution and adaptation. population genetics n. The branch of genetics that deals with the genetic makeup of populations. population genetics The scientific study […]

  • Population-inversion

    noun, Physics. 1. a condition of matter in which more electrons are in a high energy state than in a lower energy state, as is required for the operation of a laser. population inversion The condition of having enough excited or high-energy states distributed in a material that a chain-reaction of stimulated emission can occur. […]



  • Population-parameter

    noun, Statistics. 1. a quantity or statistical measure that, for a given population, is fixed and that is used as the value of a variable in some general distribution or frequency function to make it descriptive of that population: The mean and variance of a population are population parameters.

  • Population-pressure

    noun, Ecology. 1. the force exerted by a growing population upon its environment, resulting in dispersal or reduction of the population.



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