'demography' definitions:

Definition of 'demography'

(from WordNet)
noun
The branch of sociology that studies the characteristics of human populations [syn: demography, human ecology]

Definition of 'demography'

From: GCIDE
  • demography \de*mog"ra*phy\ (d[-e]*m[o^]g"r[.a]f[y^]), n. [Gr. dh^mos the people + -graphy.] The study of vital statistics, such as births, deaths, marriages, mortality, health, etc., in populations and subgroups of populations. -- {Dem`o*graph"ic}, a. [1913 Webster +PJC]