ETYM cf. Slump.
A district of a city marked by poverty and inferior living conditions; SYN. slum area.
Area of poor-quality housing. Slums are typically found in parts of the inner city in rich countries and in older parts of cities in poor countries.
Slum housing is usually densely populated, in a bad state of repair, and has inadequate services (poor sanitation, for example). Its occupants are often poor with low rates of literacy.