Concentric — Defs

01 a. Having a common center, as circles of different size, one within another.

1.
Having a common center, as circles of different size, one within another.
“Concentric circles upon the surface of the water.” — Sir I. Newton.

“Concentrical rings like those of an onion.” — Arbuthnot.

02 n. That which has a common center with something else.

1.
That which has a common center with something else.
“Its pecular relations to its concentrics.” — Coleridge.