demography
/dɪˈmɒgrəfɪ/noun
mass noun
1- the study of statistics such as births, deaths, income, or the incidence of disease, which illustrate the changing structure of human populations人口统计学。
1.1
- the composition of a particular human population人口组成（或构成）：
Europe's demography is changing.
欧洲的人口组成正在发生变化。
派生词
demographer
noun词源
late 19th cent.: from Greek dēmos 'the people' + -GRAPHY.