| Term | Definition |
| sector model | a model of the economy concerned with manufacturing usefull products through processing, transforming, and assembling raw materials |
| smart growth | legislation and regulation to limit suburban sprawl and preserve farmland |
| sprawl | the progressive spread of development over the landscape |
| squatter settlement | an area within a city in a LDC in which ppl illegally establish residences on land they do not own or rent and erect homemade structures |
| underclass | a group in society prevented from participating in the material benifits of a MDC society because of a variety of social and economic characteristics |
| urban renewal | program in which cities identify blighted inner-city neighborhoods, aquire the properties from procate owners, relocate the residents and buisnesses, clear the site, build new roads and utilities, and turn the land over to procate developers |
| urbanization | an increase in the % and in the # of ppl living in urban settlements |
| zoning ordinance | a law that limits the permited uses of land and maximum density of development in a community |