# Density (disambiguation)

From Citizendium, the Citizens' Compendium

*This disambiguation page lists articles associated with the same or a similar title.*

- Density (chemistry): A measure of the mass per unit volume of a gas, liquid or solid.
^{[e]} - Electric charge density:
*Add brief definition or description* - Electric current density:
*Add brief definition or description* - Electron density:
*Add brief definition or description* - Energy density:
*Add brief definition or description* - Heat flux density:
*Add brief definition or description* - Magnetic flux density: A divergence-free electromagnetic field, denoted
**B**, determining the Lorentz force upon a moving charge, and related to the magnetic field**H**.^{[e]} - Mass density:
*Add brief definition or description* - Optical density:
*Add brief definition or description* - Population density:
*Add brief definition or description* - Power density:
*Add brief definition or description* - Residential density:
*Add brief definition or description*

In mathematics:

- Denseness: A set is dense in another set if the closure of the former set equals the latter set.
^{[e]} - Density function: Describes, in mathematics, a measure (including probability and statistical distributions) by means of its integrals over subsets.
^{[e]} - Density (number theory): The asymptotic frequency of a subset of the natural numbers.
^{[e]} - Packing density: Ratio of area (or volume) covered by non-overlapping bodies in a region to the area (or volume) of that region.
^{[e]} - Covering density: Ratio of the total area (or volume) of overlapping bodies covering a region to the area (or volume) of that region.
^{[e]} - Dense subset: In a topological space, a subset whose closure (i.e., all boundary points added) is the whole space.
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