centroid

noun

1. Mechanics. the point that may be considered as the center of a one- or two-dimensional figure, the sum of the displacements of all points in the figure from such a point being zero.Compare center of mass.
2. Also called median point. Geometry. that point where the medians of a triangle intersect.

noun

1. 1. the centre of mass of an object of uniform density, esp of a geometric figure
   2. (of a finite set) the point whose coordinates are the mean values of the coordinates of the points of the set