The Collaborative International Dictionary
Concentrative \Con*cen"tra*tive\, a. Serving or tending to concentrate; characterized by concentration.
A discrimination is only possible by a concentrative
act, or act of attention.
--Sir W.
Hamilton.
Wiktionary
a. Characterised by concentration.
Usage examples of "concentrative".
He began with concentrative meditation-the form called meditation "with seed"--in which you must close your eyes, mentally focus on a visualized object, and clear your mind of all else.
Guided by Bob Chicane, Junior progressed from concentrative meditation with seed the mental image of a bowling pin-to meditation without seed.
He was so skilled at concentrative meditation without seed-blanking his mind-that half an hour of it was as refreshing as a night's sleep.
For more than eighteen hours, his natural urinary process had been overridden by concentrative meditation.
Given his enormous ego, it would have been out of character for him to have been faithful, and had he not utilized sex as a concentrative ritual, I am certain he would have invented another excuse for infidelity.