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[kuh n-sen-trik] /kənˈsɛn trɪk/
having a common center, as circles or spheres.
Also, concentrical.
Origin of concentric
1350-1400; Middle English consentrik < Medieval Latin concentricus. See con-, center, -ic
Related forms
concentrically, adverb
[kon-suh n-tris-i-tee, -sen-] /ˌkɒn sənˈtrɪs ɪ ti, -sɛn-/ (Show IPA),
nonconcentric, adjective
nonconcentrical, adjective
nonconcentrically, adverb
nonconcentricity, noun
unconcentric, adjective
unconcentrically, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for concentric
Contemporary Examples
Historical Examples
  • If there is any truth in the concentric ring theory, this is easily proved.

    Aztec Land Maturin M. Ballou
  • One of the casts showed a round stone with concentric circles.

    The Clyde Mystery Andrew Lang
  • The place was built in concentric circles, level above level.

    The Cosmic Computer Henry Beam Piper
  • They are made in sets of arcs of concentric circles (see fig. 80, A).

  • More than 25,000 men and thieves gathered in concentric circles about the stand.

    Lavengro George Borrow
  • The concentric circles must be to indicate the order of the letters.

    The Secret Wireless

    Lewis E. Theiss
  • Most of the starch granules are marked by a series of concentric rings.

    The Stock-Feeder's Manual Charles Alexander Cameron
British Dictionary definitions for concentric


having a common centre: concentric circles Compare eccentric (sense 3)
Derived Forms
concentrically, adverb
concentricity (ˌkɒnsənˈtrɪsɪtɪ) noun
Word Origin
C14: from Medieval Latin concentricus, from Latin com- same + centrumcentre
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for concentric

c.1400, from Middle French concentrique, from Medieval Latin concentricus, from com- "together" (see com-) + centrum "circle, center" (see center (n.)).

Online Etymology Dictionary, © 2010 Douglas Harper
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concentric in Medicine

concentric con·cen·tric (kən-sěn'trĭk)
Having a common center or center point, as of circles.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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