Density is defined as the ratio of mass per unit volume.
Density may also refer to:
Physics
Density of mass Area density or surface density, mass over an area Bulk density, mass of a particulate solid or powder divided by the volume it occupies Linear density, mass over a line Neutral density, mass density of seawater Particle mass density or true density, density of the particles that make up a particulate solid or a powder Relative density, a measure of density in comparison to the density of something else Vapour density, a relative density used for gases
Other Number density, number of particles per unit volume, area, or length Optical density, the absorbance of a material
Mathematics
Number theory Natural density, also called asymptotic density Dirichlet density Schnirelmann density
Geometry Density (polytope) Density on a manifold Packing density Tensor density in differential geometry
Other fields Density (graph theory), the fraction of possible edges that exist in a graph
Other scientific fields Density (computer storage), a measure of the quantity of information bits that can be stored on a computer storage medium Nutrient density, the proportion of any array of a single nutrient or nutritional factor, or of numerous nutrients in foods Plant density Population density, population per unit land area Spectral density, the distribution of power into frequency components in signal processing Urban density, in urban planning and design
See also Density 21.5 – a piece of music for solo flute written by Edgard Varèse Earth Passage – Density, a 1981 album by American jazz saxophonist Joseph Jarman and percussionist Don Moye Dense (film), a 2004 film Dense set Concentration Flux Intensity (physics)