Pronunciation: (sen'troid), [key]
1. Mech.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. Cf. center of mass.
2. Also called median point. Geom.that point where the medians of a triangle intersect.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.