Definition of relative density noun from the Oxford Advanced Learner's Dictionary


relative density

BrE BrE//ˌrelətɪv ˈdensəti//
; NAmE NAmE//ˌrelətɪv ˈdensəti//
(also specific gravity) [uncountable] (chemistry)
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the mass of a substance divided by the mass of the same volume of water or air
See the Oxford Advanced American Dictionary entry: relative density