the same as centre of gravity.

CENTROBARIC Method, is a method of determining the quantity of a surface or solid, by means of the generating line or plane and its centre of gravity. The doctrine is chiefly comprised in this theorem:

Every figure, whether superficial or solid, generated by the motion of a line or plane, is equal to the product of the generating magnitude and the path of its centre of gravity, or the line which its centre of gravity describes.