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Related to relative density: Archimedes Principle
See specific gravity.
(Units) the ratio of the density of a substance to the density of a standard substance under specified conditions. For liquids and solids the standard is usually water at 4°C or some other specified temperature. For gases the standard is often air or hydrogen at the same temperature and pressure as the substance. Symbol: d See also specific gravity, vapour density
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|Noun||1.||relative density - the ratio of the density of something to the density of a standard|
specific gravity - the density of a substance relative to the density of water