concentration

noun

1. the strength of a solution; number of molecules of a substance in a given volume

Definition categories: attribute, property

2. the spatial property of being crowded together

Similar word(s): compactness, denseness, density, tightness

Definition categories: attribute, spacing

3. strengthening the concentration (as of a solute in a mixture) by removing diluting material

Definition categories: act, strengthening

4. increase in density

Definition categories: event, increase

5. complete attention; intense mental effort

Similar word(s): absorption, engrossment, immersion

Definition categories: thought, attention

6. bringing together military forces

Definition categories: act, assemblage, assembly, gathering

7. great and constant diligence and attention

Similar word(s): assiduity, assiduousness

Definition categories: attribute, diligence, industriousness, industry