Center

中央

chūō

(point equidistant from all points on the perimeter of a circle)

中子

nakago

(point equidistant from all points on the perimeter of a circle)

中心

chūshin

(point equidistant from all points on the perimeter of a circle)

中心

chūshin

(point equidistant from all points on the surface of a sphere)

円心

enshin

(point equidistant from all points on the perimeter of a circle)

球心

kyūshin

(point equidistant from all points on the surface of a sphere)

真ん中

mannaka

(point equidistant from all points on the perimeter of a circle)

真中

manaka

(point equidistant from all points on the perimeter of a circle)

重心

jūshin

(point in the interior of figure with mean coordinates)