Definition of density in English:

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Pronunciation: /ˈdensədē/

noun (plural densities)

1The degree of compactness of a substance: a reduction in bone density
More example sentences
  • Because it is a weight bearing activity, skating can build bone density to a certain degree.
  • Encouraging the consumption of this single food, milk, may have lasting implications for nutrient density, bone health and body weight.
  • Syncopation in varying degrees of rhythmic density plays an important role in ‘Kohntarkosz.’
solidity, solidness, denseness, thickness, substance, mass;
compactness, tightness, hardness
1.1 (also packing density) Computing A measure of the amount of information on a storage medium (tape or disk). For magnetic tape it is the amount of information recorded per unit length of tape (bits per inch or millimeter); for a disk, a fixed number of bits per sector, sectors per track, and tracks per disk: chip density doubles every eighteen months [as modifier, in combination]: a low-density 5.25-inch floppy disk a drive capable of handling high-density 1.44 megabyte disks
More example sentences
  • With its incredibly high storage density, the DVD might just be the solution to two vexing problems.
  • While in its early stages, the technology shows potential for high speed, high density storage of data, while retaining data even when power is turned off.
  • One way to increase storage capacity is to increase the areal density of the medium.
1.2 Physics Degree of consistency measured by the quantity of mass per unit volume.
Example sentences
  • We are further informed that scientific theories fail at a singularity, which is an event involving infinite mass, density, pressure and temperature.
  • The formula is easily derived by making assumptions about the mass density of the earth.
  • That is based on its average density, calculated by dividing total mass by volume.
1.3The opacity of a photographic image.
Example sentences
  • While the imagery was similar, the format and the images' density were not.
  • Hot and cool colors come together explosively within individual dishes, offering various effects of density and opacity.
  • Phone based cameras don't yet have sufficient image density to compete with true digital cameras, but they will in a few short years.
1.4The quantity of people or things in a given area or space: areas of low population density a density of 10,000 per square mile
More example sentences
  • The low population density in rural areas makes the provision of specialized mental health services in those areas impractical.
  • It is not known why the understory of the Hermit forest had such uncharacteristically low total stem density and total basal area.
  • The Government should develop a specific number of roads every year according to the traffic density of the area concerned.


Early 17th century: from French densité or Latin densitas, from densus 'dense'.

Words that rhyme with density

immensity, propensity, tensity

For editors and proofreaders

Syllabification: den·si·ty

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