Densityis defined as how tightly or loosely packed a substance is, or to the number of things or people in a certain area.(noun)
An example of density is population density, which refers to the number of people in a certain geographic area.
See density in Webster's New World College Dictionary
noun pl. densities
Origin: Fr densité < L densitas
See density in American Heritage Dictionary 4
noun pl. den·si·ties
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