density

density /den·si·ty/ (den´sit-e)

1. the quality of being compact or dense.

2. quantity per unit space, e.g., the mass of matter per unit volume. Symbol d.

3. the degree of darkening of exposed and processed photographic or x-ray film.

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den·si·ty (dns-t)

n.

1. The mass per unit volume of a substance at a specified pressure and temperature.

2. The quantity of something per unit measure, especially per unit length, area, or volume.

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density,

n the concentration of matter, measured by mass per unit volume.

density, radiographic,

n the degree of darkening of exposed and processed photographic or radiographic film, expressed as the logarithm of the opacity of a given area of the film.

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density

1. the ratio of the mass of a substance to its volume.

2. the quality of being compact.

3. the quantity of matter in a given space.

4. the quantity of electricity in a given area, volume or time.

5. the degree of film blackening in an area of a photograph or radiograph.

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population density

number of animals per unit of area; important in relation to the rate of spread of disease.

density sampling

see sampling.