density

(dĕnˈsĭ-tē)

1. The quality or condition of being dense.
2. a. The quantity of something per unit measure, especially per unit length, area, or volume.
   b. The mass per unit volume of a substance under specified conditions of pressure and temperature.
3. Computer Science The number of units of useful information contained within a linear dimension.
4. The number of individuals, such as inhabitants or housing units, per unit of area.
5. The degree of optical opacity of a medium or material, as of a photographic negative.
6. Thickness of consistency; impenetrability.
7. Complexity of structure or content.
8. Stupidity; dullness.