barwood

[Eng. bar; wood.] An African wood used in dyeing. It is the product of Baphia nitid a, a tree which belongs to the sub-order Cæsalpinieæ. băr-ý-çěn'-tric, adj. [Gr. βαρύς ( bar us ) = heavy, and κεντρικός (kentrikos) = of or from the centre.] Nat. Phil . & Geom.: Pertaining to the centre of gravity. barycentric calculus. A kind of calculus designed to apply the mechanical theory of the centre of gravity to geometry. It was first published by Möbius, Profe or of Astronomy at Leipsic. It is founded on the principle of defining a point as the centre of gravity of certain fixed points to which co-efficients or weights are attached. It has now been superseded by the method of trilinear and quadrilinear co-ordinates, to which itself led the way.