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Density   /dˈɛnsəti/  /dˈɛnsɪti/   Listen
noun
Density  n.  
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° 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.) Depth of shade.






Collaborative International Dictionary of English 0.48








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"Density" Quotes from Famous Books



... all-powerful. Neither time nor space has dominion over it. It is the one immutable and immeasurable thing in the universe. From it all things arise and to it they return. It is everywhere and nowhere. It has none of the finite properties of matter—neither parts, form, nor dimension; neither density nor tenuity; it cannot be compressed nor expanded nor moved; it has no inertia nor mass, and offers no resistance; it is subject to no mechanical laws, and no instrument or experiment that science has yet devised ...
— The Breath of Life • John Burroughs

... the vapour of this liquid is, at first, more languid than upon iodide of allyl; indeed many beautiful reactions may be overlooked, in consequence of this languor at the commencement. After some minutes' exposure, however, clouds begin to form, which grow in density and in beauty as the light continues to act. In every experiments hitherto made with this substance the column of cloud filling the experimental tube, was divided into two distinct parts near the middle of the tube. In one experiments a globe of cloud formed at the centre, from ...
— Fragments of science, V. 1-2 • John Tyndall

... birch and hazel; while occasionally, an enormous rock raised his bald front over all, more after the fashion of a huge ruin, the monument of man's vanity, than of a fabric of nature's creation. But the circumstance which more than all others surprised us, was the density of the population. Of large towns there seem to be, in Bohemia, very few; but every vale and strath is crowded with human dwellings, village succeeding village, and hamlet treading on hamlet, with the most remarkable fecundity. On the other hand, you may strain your eyes in ...
— Germany, Bohemia, and Hungary, Visited in 1837. Vol. II • G. R. Gleig

... his eyes of crime glittering like live embers, seemed to be consumed by a murderous flame. And the lake, that lake round like an extinguished moon fallen into the depths of a former crater, a deeper and less open cup than that of the lake of Albano, a cup rimmed with trees of wondrous vigour and density! Pines, elms, and willows descend to the very margin, with a green mass of tangled branches which weigh each other down. This formidable fecundity springs from the vapour which constantly arises from the ...
— The Three Cities Trilogy, Complete - Lourdes, Rome and Paris • Emile Zola

... and under the usual pressure which it experiences. These fluids constitute a mass, in some measure homogeneous, extending from the surface of the earth to the greatest height hitherto attained, of which the density continually decreases in the inverse ratio of the superincumbent weight. But, as I have before observed, it is possible that this first stratum is surmounted by several others ...
— Elements of Chemistry, - In a New Systematic Order, Containing all the Modern Discoveries • Antoine Lavoisier


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