concentration

Noun
  1. The strength of a solution;
    Number of molecules of a substance in a given volume (synset 105045748)
  2. The spatial property of being crowded together (synset 105096011)
  3. Strengthening the concentration (as of a solute in a mixture) by removing diluting material (synset 100375879)
  4. Increase in density (synset 107428499)
  5. Complete attention;
    Intense mental effort (synset 105712213)
  6. Bringing together military forces (synset 101234545)
  7. Great and constant diligence and attention (synset 104872733)

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