density

noun den·si·ty \ˈden(t)-sə-tē\

plural den·si·ties

Definition of DENSITY

: the quality or state of being dense

: the quantity per unit volume, unit area, or unit length: as

a : the mass of a substance per unit volume

b : the distribution of a quantity (as mass, electricity, or energy) per unit usually of space (as length, area, or volume)

c : the average number of individuals or units per space unit <a population density of 500 per square mile> <a housing density of 10 houses per acre>

a : the degree of opacity of a translucent medium

b : the common logarithm of the opacity

See density defined for English-language learners

See density defined for kids

First Known Use of DENSITY

1598

Related to DENSITY

Synonyms: consistence, consistency, thickness, viscidity, viscosity

Antonyms: braininess, brightness, brilliance, cleverness, intelligence, keenness, quickness, quick-wittedness, sharpness, smartness

Other Chemical Engineering Terms

alkali, cation, decant, hygroscopic, isotope, oxidize, slurry, solute, viscous

DENSITY Defined for Kids

density

noun den·si·ty \ˈden-sə-tē\

plural den·si·ties

Definition of DENSITY for Kids

: the condition of having parts that are close together <the jungle's density>

: the amount of something in a specified volume or area <high population density>

Medical Dictionary

density

noun den·si·ty \ˈden(t)-sət-ē, -stē\

plural den·si·ties

Medical Definition of DENSITY

: the quantity per unit volume, unit area, or unit length: as a : the mass of a substance per unit volume b : the distribution of a quantity (as mass, electricity, or energy) per unit usually of space c : the average number of individuals or units per space unit <a population density of 500 per square mile>

a : the degree of opacity of a translucent medium b : absorbance