American English

Definition of density noun from the Oxford Advanced American Dictionary



    (pl. densities)
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  1. 1[uncountable, countable] the quality of being dense; the degree to which something is dense population density low density forest
  2. 2[countable, uncountable] (physics) the thickness of a solid, liquid, or gas measured by its mass per unit of volume the density of a gas
  3. 3[uncountable] (computing) the amount of space available on a disk for recording data a high/double density disk
See the Oxford Advanced Learner's Dictionary entry: density