concentration

n. १ (as, the act or action or process of bringing to a common centre) संकेंद्रण (न.) २ (as, the act or action or process of increasing the strength, as of a solute or gas in a mixture etc ; as, the process of increasing the quantity of a substance or form of energy or other entity that exists in a volume of space, etc.) संहतन (न.) ३ (as, a result of concentrating; a concentrated mass or thing) संहत (स्त्री.)