center of masscenter of mass
the point in a body or system of bodies at which the entire mass may be assumed to be concentrated
center of mass
nounpl. 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.
(plural centers of mass)
- American standard spelling of centre of mass.