zone of (or in) transition Defined by the Chicago urban sociologist Ernest Burgess as an urban area, between the central business district (CBD) and outer rings of working-class and middle-class residence, containing slum housing being displaced by CBD expansion. Inhabited by the poor, ethnic minorities, and socially deviant groups. The term is broadly synonymous with what is nowadays more commonly referred to as the ‘inner city’. See also CONCENTRIC ZONE THEORY.

zone of transition. That part of the interior surface of an Islamic building lying between the vertical walls of a square or polygonal room and the dome over: it may be covered with muqarnas.

Bibliography

Cruickshank (ed.) (1996)