What is 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 called?

concentrical — 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. (Webster's 1913.)

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