demography
de|mog|ra|phy /dɪm'ɒgrəfi/
[N-UNCOUNT]
Demography is the study of the changes in numbers of births, deaths, marriages, and cases of disease in a community over a period of time.
● demographer [N-COUNT]
...a politically astute economist and demographer.
[N-UNCOUNT]
Demography is the study of the changes in numbers of births, deaths, marriages, and cases of disease in a community over a period of time.
● demographer [N-COUNT]
...a politically astute economist and demographer.