overpopulation definition geography
Full Definition of OVERPOPULATION. : the condition of having a population so dense as to cause environmental deterioration, an impaired quality of life, or a population crash.See overpopulation defined for English-language learners.See overpopulation defined for kids. ADVERTISEMENT.ull Definition of OVERPOPULATION. : the condition of having a population so dense as to cause environmental deterioration, an impaired quality of life, or a population crash. See overpopulation defined for English-language learners. See overpopulation defined for kids.