CONCENTRIC

concentric. Concentric, a. having one and the same center

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{ Con‐cen″tric (?), Con‐cen″tric‐al (?) }, a. [[F. concentrique. See Concenter.]] 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.