The act or process of concentrating, especially the fixing of close, undivided attention.
If you have great powers of concentration , that means you're able to focus all your attention on the matter at hand.
by Mariendra March 2, 2014
You will learn this in geometry.

Concentric means "sharing the same center". Con- = used multiple times, -Centric = center-related. (like cooperate: multiple people doing the same task)

So, it's like a dartboard or bullseye: the circles are all around the same point.

Something three-dimensional, like cylinders (water bottles, spray cans), may be coaxial.
The solar system is concentric. All the planets orbit the sun.

A properly set table has the bowls and plates concentric.
by Solomon H February 14, 2006
What they did to the jews
Person 1: Yo Hitler sent those Jews to concentration camp so they could think right?

Person 2: no nigga. They died
Person 1: damn
by DikInYoMouf69 June 29, 2018
Euphemism for the delightful, ambrosial act of excreting; to shit.

See concentration.
"Hold on, I'm going to the bathroom, I need to concentrate."

"Yo, Imma gonna concentrate nigga".
by rony orwell October 9, 2014
focusing your attention on someone or something.
Tanvi and I had to concentrate to study for an exam.
by tanvib123 March 6, 2018
to smoke weed before an activity
john: yo man whats up wit you
eric: i just concentrated
by cassay January 25, 2008