concentrations

Noun

• the strength of a solution; number of molecules of a substance in a given volume
• the spatial property of being crowded together
• strengthening the concentration (as of a solute in a mixture) by removing diluting material
• increase in density
• complete attention; intense mental effort
• bringing together military forces
• great and constant diligence and attention
• plural of concentration

Synonyms

absorption, assiduity, assiduousness, compactness, concentration, denseness, density, engrossment, immersion, tightness

Antonyms

dilution, distribution