CONCENTRATION By N., Sam M.S. - 4 noun. 1. the action of gathering together or concentrating. 2. the amount of a compound dissolved into a liquid or solution. CONCENTRATION: "The concentration of liquids is used frequently in the art of baking." Related Psychology Terms ESTHETICS INHIBITION OBSESSRVE-COMPULSIVE REACTION CREATIVITY TESTS REGRESSION BRAIN TUMOR DISORDERS AER HUNGER MANIC-DEPRESSIVE REACTION (DEPRESSIVE PHASE) SOLVENT PERMEABILITY Cite this page: N., Sam M.S., "CONCENTRATION," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/concentration/ (accessed November 27, 2021).