Stabilize means to reach a state of balance or equilibrium. In the context of population, it refers to a situation where the number of births and deaths is roughly equal, resulting in little to no change in population size.
Related terms
Declining Birth Rates: This term refers to a decrease in the average number of children born per woman in a given population.
Replacement Level Fertility: The fertility rate at which each generation replaces itself without any increase or decrease in population size.
Zero Population Growth (ZPG): A condition where birth rates are equal to death rates, resulting in no net change in population size over time.