Average population per unit area; especially, the average number of people who live on each square kilometer (or square mile) of land.

(geography) The population density measured as the number of farmers per unit area of arable land

(geography) The population density measured as the number of people per unit area of arable land

(geography, statistics) The population density measured as the number of people per unit area of land

(astrophysics) The minimum density a black hole can have: 1/(2G/c² ) or 6.734×10²⁶ kg/m (kilograms per meter).

(physics) A measure of rate of flow of a fluid, particles or energy per unit area

The total amount per unit area of a material suspended in a fluid or in a cloud in space, measured along the length of a column.

plural of density dependence

plural of density function

(physics) A measure of the probability of finding an electron at a specific location within an orbital / (physics) A measure of the number of electrons per unit volume of space.