centre

le centre (FR N-M) center, interior point situated equally distant from the points of circumference of a circle or the surface of a sphere; for other shapes, point away from which pairs of other points are placed symmetrically and oppositely; the middle of a space; point of application of forces; point of convergence, hub; point where energy is concentrated and from which it radiates; animator. First appears in French in the 13th century, from Latin centrum, Greek kentron. (Renard, Verlaine)