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density |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Density \Den"si*ty\, n. [L. densitas cf F. densit['e].] 1. The quality of being dense, close or thick; compactness; -- opposed to rarity. 2. (Physics) 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[deg] Centigrade and a pressure of 760 millimeters. For liquids and solids the standard is water at a temperature of 4[deg] 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.) Depth of shade. --Abney. From WordNet r 1.6 [wn]: density n 1: the amount per unit size [syn: {denseness}] 2: the spatial property of being crowded together [syn: {concentration}, {denseness}, {compactness}] [ant: {distribution}]
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