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Webster 1913 Edition
Concentrical
{
, Con-cen′tric
,Con-cen′tric-al
}Adj.
[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.