density

How tightly packed

Density is how tightly packed something is—the amount of mass or substance in a given space or volume.

In physics, it's calculated as mass divided by volume: lead has high density, styrofoam has low density.

The term extends to population density (people per square mile) and to abstract uses: the density of ideas in the lecture was overwhelming.

Dense can also suggest thickness or impenetrability, and informally, stupidity: He's too dense to get the joke.

compactness

compression

Forcing into smaller space

congestion · thickness · firmness · heaviness · cohesion · massiveness · impenetrability · hardness · substantiality · cramped

calculus

integration

Combining into a whole

curve · limits · infinitesimal · antiderivative · intervals · probability · distribution · function · integral

population

demographics

Statistical population characteristics

census · settlement · migration · sprawl · residents · megacity · metropolis · dwellers · habitation · birthrate

concentration

solution

Answer or liquid mixture

saturation · molarity · dissolve · precipitate · aqueous · titration · suspension · colloid · stoichiometry · gradient

opacity

translucent

Permitting diffused light passage

foggy · hazy · turbid · smoky · shadowy · dim · obscured · optical · absorption · transmittance

Categories
Opposites
physical concentration

densitysparsity

Lack of abundance

sparseness · thinness · porosity · diffuseness · lightness

population or spatial distribution

densitysparsity

Lack of abundance

sparseness · scarcity · emptiness · openness · dispersion

mental acuity (informal)

densityintelligence

Mental ability, cognitive capacity

sharpness · quick-wittedness · brightness · cleverness · brilliance

Phrases
Family

condensing, densities, densification

Familiarity
Top 50,000
Profile
Known to kids · Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G