e·kis·tics 
(ĭ-kĭstĭks)
(ĭ-kĭstĭks)n. (used with a sing. verb)
The science of human settlements, including city or community planning and design.
[Modern Greek oikistikē, from feminine of Greek oikistikos, of settlements, from oikistēs, colonizer, founder, from oikizein, to settle, from oikos, house; see ECONOMY.]
e·kistic, e·kisti·cal adj.
ek′is·tician (ĕk′ĭ-stĭshən) n.