Medical Dictionary


noun den·si·ty \ˈden(t)-sət-ē, -stē\
plural den·si·ties

Medical Definition of DENSITY

:  the quantity per unit volume, unit area, or unit length: as a :  the mass of a substance per unit volume b :  the distribution of a quantity (as mass, electricity, or energy) per unit usually of space c :  the average number of individuals or units per space unit <a population density of 500 per square mile>
a :  the degree of opacity of a translucent medium b :  absorbance
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