relative density
Noun

relative density

  1. (sciences) A measure of the density of a material. The ratio of the density of a substance to the density of water at the same temperature. It is dimensionless and therefore has no units.
    Typical relative densities (approximate)
    ethanol: 0.79
    water: 1.00
    iron: 7.8
    gold: 19.3
Synonyms


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