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Noun concentration has 7 senses
  1. concentration - the strength of a solution; number of molecules of a substance in a given volume (expressed as moles/cubic meter)
    --1 is a kind of
    --1 has particulars:
     titer, titre; hydrogen ion concentration; molality; molarity, molar concentration, M
    Derived form: verb concentrate1
  2. concentration, density, denseness, compactness - the spatial property of being crowded together
    --2 is a kind of spacing, spatial arrangement
    Antonyms: distribution, dispersion
    --2 has particulars: bits per inch, bpi; flux density, flux
    Derived form: verb concentrate5
  3. concentration - strengthening the concentration (as of a solute in a mixture) by removing extraneous material
    --3 is a kind of
    Antonyms: dilution
    --3 has particulars: pervaporation
    Derived forms: verb concentrate6, verb concentrate4, verb concentrate7, verb concentrate1, verb concentrate8
  4. concentration - increase in density
    --4 is a kind of
    --4 has particulars:
     compaction, compression, concretion, densification; rarefaction
    Derived forms: verb concentrate7, verb concentrate1, verb concentrate8
  5. concentration, engrossment, absorption, immersion - complete attention; intense mental effort
    --5 is a kind of attention
    --5 has particulars:
     focus, focusing, focussing, direction, centering; specialism; study
    Derived form: verb concentrate2
  6. concentration - bringing together military forces
    --6 is a kind of
    assembly, assemblage, gathering
    Derived form: verb concentrate5
  7. assiduity, assiduousness, concentration - great and constant diligence and attention
    --7 is a kind of diligence, industriousness, industry
    --7 has particulars: intentness, engrossment; singleness
    Derived form: verb concentrate2
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