The shift in the population structure of a society from high birth and death rates to lower birth and death rates as part of economic development.

जनसांख्यिकीय संक्रमण

English Usage: The country's demographic transition has resulted in a more aging population, impacting social services.

Hindi Usage: देश का जनसांख्यिकीय संक्रमण अधिक प्रौढ़ जनसंख्या का परिणाम है, जो सामाजिक सेवाओं पर असर डालता है।