de‧mog‧ra‧phy /dɪˈmɒɡrəfi $ -ˈmɑː-/
noun [uncountable][
Date: 1800-1900;
Language: French;
Origin: démographie, from Greek demos 'people']
the study of human populations and the ways in which they change, for example the study of how many births, marriages and deaths happen in a particular place at a particular time
—demographer noun [countable] [TahlilGaran] Dictionary of Contemporary English ▲