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concentrate at (some place)

1. To have people gather in a particular place or area. In this usage, a noun or pronoun is used between "concentrate" and "at." Concentrate all the guests at the entrance to the venue for now—I don't want them to see the wedding party just yet.
2. To gather in a particular place or area in large numbers. Most of the guests are concentrated at the buffet right now. I had a hard time getting down the hallway because so many students were concentrated at the door to the gym.
See also: concentrate

concentrate on (someone or something)

To focus on a particular person or thing. I'm sorry, but I can't concentrate on what you're saying with that music blaring in the background. If you want to get into the college of your choice, you really need to concentrate on your schoolwork.
See also: concentrate, on

concentrate the mind

To cause one to focus, typically on what is important in a particular situation. I didn't think I was capable of diffusing a bomb, but nothing concentrates the mind more than the threat of danger!
See also: concentrate, mind

concentrate at some place

to gather thickly at a place. The moths concentrated at the window at night, attracted by the light. All the thirsty children concentrated at the water fountain.
See also: concentrate, place

concentrate someone or something at something

to cause people or things to gather at a place; to cause people or things to convene or converge at a place. You shouldn't concentrate all the guards at one entrance. The general concentrated all the big guns at the entrance to the valley.
See also: concentrate

concentrate something on someone or something

to focus something on someone or something; to center on someone or something. Let's try to concentrate our efforts on finishing this job today. She concentrated her attention on Lynn.
See also: concentrate, on

concentrate (up)on someone or something

to focus one's thinking on someone or something; to think intensely about someone or something. (Upon is formal and less commonly used than on.) Please concentrate upon Jeff. He is the one we should discuss. Try to concentrate on your work more.
See also: concentrate, on

ˌconcentrate the ˈmind

make you think very clearly and seriously about something: Being informed that you are likely to lose your job unless you work harder concentrates the mind wonderfully.
See also: concentrate, mind
References in periodicals archive ?
The technology for such HOE solar concentrators is now in the public domain, because the key patent covering holographic solar concentrators, US Patent No.
Because IP-optimized DSL concentrators aggregate Internet traffic separately from video traffic, providers can deploy them in much simpler networking configurations than ATM-based DSLAMs, and with less investment in upstream supporting equipment, including ATM switches and subscriber management systems.
Traffic from one office suite cannot pass to another via bridging, as the access concentrator controls access at the frame-relay or IP-switching level.
StoneFly Networks' i1000 and i1500 Storage Concentrators combine the functionality of iSCSI-based storage routers, bridges, and extensible logical volume managers to provide all-in-one storage virtualization appliances.
The study sample members were divided into four groups as follows: (1) academic concentrators (students completing only an academic concentration); (2) CTE concentrators (students completing only a CTE concentration); (3) dual concentrators (students completing both an academic and a CTE concentration); and (4) nonconcentrators (students completing neither concentration).