[f. as prec. + -ITY.] The quality or state of being concentric.
1650. E. W[illiams], Virginia, Ded. Had not the Concentricity of your undertakings, had not the Homogeniousnesse of your actions and felicity, vindicated and asserted the honour of antiquity.
1662. J. Chandler, Van Helmonts Oriat. (1664), lx. 470. I did rather resemble an arrogant Stoicism, than that I did with the joy of concentricity or a mutual centredness, purely resign up my tribulations unto my most bountiful Jesus.
1803. Edin. Rev., I. 429. The grand circumstance of concentricity is evidently sufficient to authorise a classification of the new bodies [the asteroids] under the head of planets.
1869. Phillips, Vesuv., vii. 191. We observe the general concentricity of all the layers.