having a common center, as circles or spheres. Also con·cen·tri·cal .

Is concentrically a word?

adj. Having a common center.

What does it mean if someone is concentric?

Concentric is from the Latin word concentricus, from com ("together") plus centrum ("center" or "circle"). So, concentric things have a center in common. ... The opposite word is eccentric ("not having a common center") like that oddball neighbor you have nothing in common with.