[ dɪ'mɒgrəfi ]
■ noun the study of the structure of human populations using statistics relating to births, deaths, wealth, disease, etc.
Derivatives
demographer noun
demographic ˌdɛmə'grafɪk adjective
demographical adjective
demographically adverb
demographics plural noun
Origin
C19: from Gk dēmos 'the people' + -graphy .