Field Hockey. the player in the middle among the halfbacks.
Soccer. the player in the middle of his or her own half of the field who carries out both offensive and defensive duties.
this player position in certain sports
a jump ball between the centers of the opposing teams, held in the circle at the center of the court, as at the beginning of each period.
the point at which the entire mass of a body may be considered concentrated for some purposes; formally, the point such that the first moment of a physical or geometric object about every line through the point is zero. Compare moment (def 8). center of mass A point in space determined by a distribution of […]
the center of the circle of curvature.
Mechanics. the point through which the resultant of gravitational forces on a body passes and from which the resultant force of attraction of the body on other bodies emanates: coincident with the center of mass in a uniform gravitational field. a person, thing, or idea that is the vital or pivotal focus of interest or […]