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Noun: concentration  ,kón-sun'trey-shun
  1. The strength of a solution; number of molecules of a substance in a given volume
     
  2. The spatial property of being crowded together
    - density, denseness, tightness, compactness
     
  3. Strengthening the concentration (as of a solute in a mixture) by removing diluting material
     
  4. Increase in density
     
  5. Complete attention; intense mental effort
    - engrossment, absorption, immersion
     
  6. Bringing together military forces
     
  7. Great and constant diligence and attention
    - assiduity, assiduousness

Derived forms: concentrations

Type of: assemblage, assembly, attention, diligence, gathering, increase, industriousness, industry, property, spacing, spatial arrangement, strengthening

Antonym: dilution, distribution

Encyclopedia: Concentration