[1] : The Collaborative International Dictionary of English v.0.48

concentric \concen"tric\, concentrical \concen"trical\, a.
   f. concentrique. see concenter.
   having a common center, as circles of different size, one
   within another.
   1913 webster

         concentric circles upon the surface of the water. --sir
                                                  i. newton.
   1913 webster

         concentrical rings like those of an onion. --arbuthnot.
   1913 webster
see also:
concenter 

[2] : The Collaborative International Dictionary of English v.0.48

concentric \concen"tric\, n.
   that which has a common center with something else.
   1913 webster

         its pecular relations to its concentrics. --coleridge.
   1913 webster

[3] : WordNet (r) 2.0

concentric
     adj : having a common center; "concentric rings" syn: concentrical,
            homocentric ant: eccentric
see also:
concentrical homocentric eccentric 

Concentric >> C Words
Concentric, definition of term: Concentric
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