'Concentration' definitions:

Definition of 'concentration'

(from WordNet)
noun
The strength of a solution; number of molecules of a substance in a given volume
noun
The spatial property of being crowded together [syn: concentration, density, denseness, tightness, compactness] [ant: dispersion, distribution]
noun
Strengthening the concentration (as of a solute in a mixture) by removing diluting material [ant: dilution]
noun
Increase in density
noun
Complete attention; intense mental effort [syn: concentration, engrossment, absorption, immersion]
noun
Bringing together military forces
noun
Great and constant diligence and attention [syn: assiduity, assiduousness, concentration]

Definition of 'Concentration'

From: GCIDE
  • 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. [1913 Webster]
  • Concentration of the lunar beams. --Boyle. [1913 Webster]
  • Intense concetration of thought. --Sir J. Herschel. [1913 Webster]
  • 2. The act or process of reducing the volume of a liquid, as by evaporation. [1913 Webster]
  • The acid acquires a higher degree of concentration. --Knight. [1913 Webster]
  • 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. [1913 Webster]

Definition of 'concentration'

From: GCIDE
  • 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.] [1913 Webster]

Synonyms of 'concentration'

From: Moby Thesaurus