density
UK: ˈden.sɪ.ti | US: ˈden.sə.ti
n. the degree of compactness of a substance
n. the quantity of people or things in a given area or space
n. (physics) mass per unit volume
The word "density" originates from the Latin densus, meaning "thick" or "compact." The suffix -ity (from Latin -itas) transforms the adjective "dense" into a noun, denoting the state or quality of being compact. The term evolved in scientific contexts to describe the mass-to-volume ratio of materials, reflecting its root meaning of "thickness" in a measurable form.
The density of the forest made it difficult to walk through.
Population density is higher in urban areas than in rural ones.
Scientists measure the density of liquids using a hydrometer.
The density of the cake was due to overmixing the batter.
This metal’s density makes it ideal for construction.