| Population | Definition |
| AGE DISTRIBUTION | the distribution of individuals among age groups in a population |
| CARRYING CAPACITY | The supportable population of an organism, given the food, habitat, water and other necessities available within an ecosystem is known as the ecosystem's carrying capacity for that organism. For the human population more complex variables such as sanitati |
| COHORT | In statistics and demography, a cohort is a group of subjects — most often humans from a given population — defined by experiencing an event (typically birth) in a particular time span |
| DEMOGRAPHIC EQUATION | The forumula that calculates population change. The increase (or decrease) in population is births minus deaths plus (or minus) net migration. |
| DEMOGRAPHIC MOMENTUM | Demographic momentum is the phenomenon of continued population increase despite reduced reproductive rates. |
| DEMOGRAPHIC REGIONS | defined regions where demographics of an area take place |
| DEMOGRAPHIC TRANSITION MODEL | Demographic transition is a model used to explain the process of transition from high birth rates and high death rates to low birth rates and low death rates,parts of the economic development of a country from a pre-industrial to a industrialized economy. |
| DEPENDENCY RATIO | is the ratio of the economically dependent part of the population to the productive part. |
| DIFFUSION OF FERTILITY CONTROL | the diffusion of products that help in the use of lessening the number of births within a country |
| DISEASE DIFFUSION | Disease diffusion occurs when a disease is transmitted to a new location [1]. It implies that a disease spreads, or pours out, from a central source |
| DOUBLING TIM | The doubling time is the period of time required for a quantity to double in size or value. It is applied to population growth, inflation, resource extraction, consumption of goods, compound interest, and many other things which tend to grow over time. |
| ECUMENE | They are the un-habited areas of the earth. |
| EPIDEMIOLOGICAL TRANSITION MODEL | considers the diminishing role of epidemics or infectious diseases for a general decline in mortality |
| GENDERED SPACE | the occurrence of a certain gender in a place |
| INFANT MORTALITY RATE | Infant mortality is defined as the number of deaths of infants (one year of age or younger) per 1000 live births. |
| J-CURVE | The shape of the trend of a country’s trade balance following a devaluation. A lower exchange rate initially means cheaper exports and more expensive imports, making the current account worse (a bigger deficit or smaller surplus). |
| MALADAPTATION | A maladaptation is an adaptation that is (or has become) less helpful than harmful. |
| MALTHUS, THOMAS | A English demographer and political economist Thomas Robert Malthus, FRS (13 February 1766 – 1834),has become arguably best-known for his influential views on population growth. He famously emphasised the potential for populations to rise steeply. |
| MORTALITY | Mortality is the condition of being mortal, or susceptible to death; the opposite of immortality.?? |
| NATALITY | Birth rate, or new individuals per unit time, can be referred to as natality, the opposite of mortality. |
