rhizoverbBeta
DictionaryconcentricShared center
adjective

concentric

kun-SEN-trik/kənˈsentrɪk/

Having the same center.

The three circular hoops are concentric.

A straight-on view of three differently sized circular hoops nested around one small central dot, all sharing exactly the same center.
Etymology
conLatintogether
+centricLatincenter

The pieces express a center held in common. Centrum originally named the fixed point of a drafting compass—the point that can remain unchanged while circles of different sizes are drawn.

In context

Ursula's Odds and Sods1:28
it features earth in the center personified by an astronomer concentric circles represent the four elements the seven planets
Empyrean (Medieval conception of the heavens, last four cantos of The Divine Comedy)

More examples

  • The target has several concentric rings.
  • The design places smaller concentric circles inside larger ones.
  • The two cylinders are concentric.

Forms

concentric

Similar words

coaxial
Coaxial objects share an axis; concentric shapes share a center.
nested
Nested means placed one inside another; concentric shapes must also share the same center.