Main Entry:

den·si·ty

Pronunciation:

\ˈden(t)-sə-tē\

Function:

noun

Inflected Form(s):

plural den·si·ties

Date:

1598

1: the quality or state of being dense2: 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 (as length, area, or volume) c: the average number of individuals or units per space unit <a population density of 500 per square mile> <a housing density of 10 houses per acre> 3 a: the degree of opacity of a translucent medium b: the common logarithm of the opacity