concentrated

gathered together or made less diffuse; "their concentrated efforts"; "his concentrated attention"; "concentrated study"; "a narrow thread of concentrated ore"

(of light) transmitted directly from a pointed light source

being the most concentrated solution possible at a given temperature; unable to dissolve still more of a substance; "a saturated solution"

of or relating to a solution whose dilution has been reduced

intensely focused; "her concentrated passion held them at bay"