You searched for: “density”
density
1. Thickness of consistency; impenetrability.
2. Complexity of structure or content.
3. A measure of how tightly mass is packed into a given space.
4. Mass per unit of volume.

In astronomy, the mean relative density compares a planet's density with the density of water, 62.4 pounds per cubic foot or one gram per cubic centimeter.

This entry is located in the following units: Astronomy and related astronomical terms (page 8) Cement, Concrete: Has Gone High Tech + (page 1)
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Meteorology or Weather Terms +
(topics about the study of the complex motions and interactions of the atmosphere, including the observation of phenomena; such as, temperature, density, winds, clouds, and precipitation)
Word Entries containing the term: “density”
density wave
A theory to account for the spiral structure of galaxies.

Supposing that such a wave could be set up in the first place, the theory suggests that the spiral arms mark the positions of regions of higher than average density, which rotate around the galaxy.

Stars orbiting the center of the galaxy spend a considerable amount of time in the higher density regions before moving out, with the higher density also favoring the formation of young stars by fragmentation within it.

This entry is located in the following unit: Astronomy and related astronomical terms (page 8)
energy density
The ratio of available energy per pound; usually used to compare storage batteries.
power density
The ratio of the power available from a battery to its mass (W/kg) or volume (W/l).
This entry is located in the following unit: Photovoltaic Conversion Efficiency Terms + (page 17)
relative density
The density of a substance relative to that of water.

Thus, a material with a relative density of 5.5 has a density of about 343 pounds per cubic foot or 5,500 kilograms per cubic meter.

This entry is located in the following unit: Astronomy and related astronomical terms (page 22)