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Pronunciation : Den"si*ty
Part of Speech : n.
Etymology : [L. densitas; cf. F. densit?.]
Definition : 1. The quality of being dense, close, or thick; compactness; -- opposed to rarity.
2. (Physics)
Defn: The ratio of mass, or quantity of matter, to bulk or volume, esp. as compared with the mass and volume of a portion of some substance used as a standard.
Note: For gases the standard substance is hydrogen, at a temperature of 0? Centigrade and a pressure of 760 millimeters. For liquids and solids the standard is water at a temperature of 4? Centigrade. The density of solids and liquids is usually called specific gravity, and the same is true of gases when referred to air as a standard.
3. (Photog.)
Defn: Depth of shade. Abney.
Source : Webster's Unabridged Dictionary, 1913
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