English Dictionary: concentration | by the DICT Development Group |
3 results for concentration | |
From WordNet (r) 3.0 (2006) [wn]: | |
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From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Dephlegmation \De`phleg*ma"tion\, n. [Cf. F. d[82]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. |