density

noun den·si·ty \ ˈden(t)-sə-tē \

Definition of density

plural densities
1 :the quality or state of being dense
  • measures of traffic density
  • the density of the cake
  • felt that the candidate's density on the subject of equality was alarming
  • the density of her prose
2 mathematics :the quantity per unit volume (see 1volume 2), unit area (see area 1), or unit length: such as
a chemistry :the mass (see 2mass 1c) of a substance per unit volume
b chemistry :the distribution of a quantity (such as mass, electricity, or energy) per unit usually of space (such 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 physics
a :the degree of opacity (see opacity 2) of a translucent medium
  • the fog's density
b :the common logarithm of the opacity

Examples of density in a Sentence

  1. We were surprised by the fog's density.

  2. the density of her writing style

  3. These instruments are used for measuring the density of the atmosphere.

Recent Examples of density from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'density.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of density

see dense

Other Chemical Engineering Terms



DENSITY Defined for Kids

density

noun den·si·ty \ ˈden-sə-tē \

Definition of density for Students

plural densities
1 :the condition of having parts that are close together
  • the jungle's density
2 :the amount of something in a specified volume or area
  • high population density

Medical Dictionary

density

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

medical Definition of density

plural densities
1 :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
2 a :the degree of opacity of a translucent medium


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