1 of your attention
ADV. totally Kate sat up fully, her attention now totally concentrated.
2 of a substance
ADV. highly, very The liquid is found in a highly concentrated form.
3 found in one place
ADV. heavily, highly, particularly, strongly, very | increasingly | largely, mainly, mostly, overwhelmingly, primarily | disproportionately These jobs are disproportionately concentrated in the service sector. | geographically The immigrant community is strongly concentrated geographically.
PREP. at, in Most of the country's industry is concentrated in the north. | within Childbearing is concentrated within the first decade of married life.