Noun
The act or process of concentrating; the process of becoming concentrated, or the state of being concentrated; concentration.
The act or process of reducing the volume of a liquid, as by evaporation.
The act or process of removing the dress of ore and of reducing the valuable part to smaller compass, as by currents of air or water.
Source: Webster's dictionaryThe art of pictorial creation is so complicated - it is so astronomical in its possibilities of relation and combination that it would take an act of super-human concentration to explain the final realization. Hans Hofmann
No fine work can be done without concentration and self-sacrifice and toil and doubt. Max Beerbohm
The closer a man approaches tragedy the more intense is his concentration of emotion upon the fixed point of his commitment, which is to say the closer he approaches what in life we call fanaticism. Arthur Miller
I do not believe in God; his existence has been disproved by Science. But in the concentration camp, I learned to believe in men. Jean-Paul Sartre
Many countries persecute their own citizens and intern them in prisons or concentration camps. Oppression is becoming more and more a part of the systems. Alva Myrdal
The Supreme Court of the United States... has validated the Nazi method of execution in... concentration camps, starving them to death! Jack Kevorkian