Real estate: intensity of land use. For example, if a 10-acre subdivision contains 30 single-family houses, the housing density is 3 dwelling units per acre. If the population density is 4 people per house, the population density per acre is 12.
In general: term used as a measure of population in proportion to a geographic area.
Direct marketing: measure of the proportion of customers or prospective customers in a geographic area compared to the total population of the area.
Photography: measure of the relative blackening of photographic images, which consist of silver particles spread in varying densities onto a surface. The particles create images of light, dark, and shadow. See also densitometer.
the intensity of a land use.
Example: A 10-acre subdivision contains 30 single-family houses. The density is 3 dwelling units per acre.
