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Meaning of density

den•si•ty

Pronunciation: (den'si-tē), [key]
— pl. -ties.
  1. the state or quality of being dense; compactness; closely set or crowded condition.
  2. stupidity; slow-wittedness; obtuseness.
  3. the number of inhabitants, dwellings, or the like, per unit area: The commissioner noted that the population density of certain city blocks had fallen dramatically.
  4. mass per unit volume.
    1. the quantity of electricity per unit of volume at a point in space, or the quantity per unit of area at a point on a surface.
    2. Seecurrent density.
  5. the degree of opacity of a substance, medium, etc., that transmits light.
  6. the relative degree of opacity of an area of a negative or transparency, often expressed logarithmically.
  7. a measure of the compactness of data stored on an external storage medium, as disk or tape, or displayed on a CRT or other screen.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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