(n) the branch of anthropology that deals with the division of humankind into races and with their origins and distribution and distinctive characteristics
The Collaborative International Dictionary of English (GCIDE) v.0.53 Collaborative International Dictionary (GCIDE)
pos>n. [ Gr. &unr_; nation + -logy. ] The science which treats of the division of mankind into races, their origin, distribution, and relations, and the peculiarities which characterize them.