Concentrative adj. Serving or tending to concentrate; characterized by concentration. "A discrimination is only possible by a concentrative act, or act of attention."
... know how that flying trick is done," Shiel said to himself. "According to Kelson it is entirely a question of will power. I'll see if I can't develop my concentrative faculty and introduce a few of the same performances in our show. I'll go to the ... — The Sorcery Club • Elliott O'Donnell
... you a practical working knowledge of concentrative mental methods and devices. We shall clear away the mysteries and misapprehensions that ... — Psychology and Achievement • Warren Hilton
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