Answer: concentrations

AnswerCrossword Clue
concentrationsA close gathering of people or things
concentrationsThe action or power of focusing one's attention or mental effort
concentrationsDealing with one particular thing above all others
concentrationsThe action of strengthening a solution by the removal of water or other diluting agent or by the selective accumulation of atoms or molecules
concentrationsThe relative amount of a given substance contained within a solution or in a particular volume of space; the amount of solute per unit volume of solution
concentrationsCONCENTRATION, the act of concentrating
concentrationsThe action of gathering together closely