Concentric objects
Concentric zone model
Concentric (disambiguation)
Balo concentric sclerosis
Concentric siphon
Concentric crater fill
Concentric castle
Concentric reducer
Concentric (album)
Concentric Sky
Concentric hypertrophy
Eyewall replacement cycle
Concentric Data Systems
Concentric Group
Concentric spheres
Concentric Circles (Kenny Barron album)
Concentric twinax connector
Violin Concerto (Adès)
Concentricity error
Concentricities
Concentric Circles (Chris Potter album)
Amal (carburettor)
Concentric tube heat exchanger
XO Communications
Coaxial loudspeaker
Muscle contraction
Exfoliation joint
Progressive tonality
Stone circle
Unusual types of gramophone records
Neolithic circular enclosures in Central Europe
AC power plugs and sockets