Definition of "Concentrate" :

noun: a concentrated example of something

"The concentrate of contemporary despair."

noun: a concentrated form of a foodstuff; the bulk is reduced by removing water

noun: the desired mineral that is left after impurities have been removed from mined ore

verb: cook until very little liquid is left

verb: be cooked until very little liquid is left

verb: make denser, stronger, or purer

"Concentrate juice."

verb: make more concise

verb: compress or concentrate

verb: make central

verb: direct one's attention on something

verb: draw together or meet in one common center

"These groups concentrate in the inner cities."