bar·y·cen·ter  (bār'ĭ-sěn'tər)  n. See center of mass. [Greek barus, heavy; see gwerə-1 in Indo-European roots + center.] |
| center of mass n. pl. centers of mass Abbr. CM The point in a system of bodies or an extended body at which the mass of the system may be considered to be concentrated and at which external forces may be considered to be applied. Also called barycenter, centroid. |