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density

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density

Measure of the compactness of a substance; it is equal to its mass per unit volume and is measured, for example, in kg per cubic metre or lb per cubic foot. Density is a scalar quantity. The average density D of a mass m occupying a volume V is given by the formula: D = m/V. Relative density is the ratio of the density of a substance to that of water at 4°C/39.2°F.

In photography, density refers to the degree of opacity of a negative; in electricity, current density is the amount of current passing through a cross-sectional area of a conductor (usually given in amperes per square in or per square cm).



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? Mentioned in ? References in classic literature
 
The density of the weed gave me a reassuring sense of hiding.
The War Of The Worlds by Wells, H.G. View in context
Their density would not en- able them to understand his sharper point of view.
The Red Badge of Courage by Crane, Stephen View in context
"I did not mean," he said over the soup, addressing Alexey Alexandrovitch, "mere density of population alone, but in conjunction with fundamental ideas, and not by means of principles.
Anna Karenina by Tolstoy, Leo View in context
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