rare. [f. SPHERE sb. + -ATION.] The process of being formed into a sphere; the formation of a sphere or spheres.
1883. American, VII. 152. A sketch of the life of a nebula not thus broken up, of its rotation, annulation, and final spheration into a nebulous orb, determined to become a planet or a sun.
1893. E. A. Yates, in Raleigh Christian Advocate, 15 Nov., 1/2. It is not unscientific to suppose that this stream of meteors may be undergoing the process of spheration, or globe-making. If so, what is to prevent a large meteor … from striking the earth!
