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more about concentration
concentration |
3 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Dephlegmation \De`phleg*ma"tion\, n. [Cf. F. d['e]flegmation.] (Chem.) The operation of separating water from spirits and acids, by evaporation or repeated distillation; -- called also {concentration}, especially when acids are the subject of it [Obs.] From Webster's Revised Unabridged Dictionary (1913) [web1913]: Concentration \Con`cen*tra"tion\, n. [Cf. F. concentration.] 1. The act or process of concentrating; the process of becoming concentrated, or the state of being concentrated; concentration. Concentration of the lunar beams. --Boyle. Intense concetration of thought. --Sir J. Herschel. 2. The act or process of reducing the volume of a liquid, as by evaporation. The acid acquires a higher degree of concentration. --Knight. 3. (Metal.) The act or process of removing the dress of ore and of reducing the valuable part to smaller compass, as by currents of air or water. From WordNet r 1.6 [wn]: concentration n 1: the strength of a solution; number of molecules of a substance in a given volume (expressed as moles/cubic meter) 2: the spatial property of being crowded together [syn: {density}, {denseness}, {compactness}] [ant: {distribution}] 3: strengthening the concentration (as of a solute in a mixture) by removing extraneous material [ant: {dilution}] 4: increase in density 5: complete attention; intense mental effort [syn: {engrossment}, {absorption}] 6: bringing together military forces 7: great diligence [syn: {assiduity}, {assiduousness}]
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