| a. | 1. | Having a common center, as circles of different size, one within another. |
| n. | 1. | That which has a common center with something else. |
| Adj. | 1. | concentric - having a common center; "concentric rings" Synonyms: concentrical, homocentric Antonyms: nonconcentric, eccentric - not having a common center; not concentric; "eccentric circles" |