ˈkɑnsəntɹeɪtɪd ˈkɒnsəntɹeɪtɪd hɑːd hɑɹd gathered together or made less diffuse their concentrated efforts his concentrated attention concentrated study a narrow thread of concentrated ore of or relating to a solution whose dilution has been reduced being the most concentrated solution possible at a given temperature; unable to dissolve still more of a substance a saturated solution (of light) transmitted directly from a pointed light source intensely focused her concentrated passion held them at bay