{Centrobaric method} (Math.), a process invented for the
purpose of measuring the area or the volume generated by
the rotation of a line or surface about a fixed axis,
depending upon the principle that every figure formed by
the revolution of a line or surface about such an axis has
for measure the product of the line or surface by the
length of the path of its center of gravity; -- sometimes
called {theorem of Pappus}, also, incorrectly, {Guldinus's
properties}. See {Barycentric calculus}, under {Calculus}.