center of ossification n.
The site where bone begins to form in a specific bone or part of bone as a result of the accumulation of osteoblasts in the connective tissue.
The site where bone begins to form in the shaft of a long bone or the body of an irregular bone; primary ossification center.
The site where bone formation continues after beginning in the long shaft or body of the bone, usually in an epiphysis; secondary ossification center.
The site of earliest destruction of cartilage prior to bone formation; ossific center.
the point on a rigid body, suspended so as to be able to move freely about a fixed axis, at which the body may be struck without changing the position of the axis.
a point within a crystal through which any straight line extends to points on opposite surfaces of the crystal at equal distances.
an ornamental object used in a central position, especially on the center of a dining-room table. the central or outstanding point or feature: The centerpiece of the evening was a play put on by the employees. Contemporary Examples Historical Examples n. also center-piece, 1800, from center + piece (n.). Figurative sense is recorded from 1937.
a cylindrical device passing through the center plates of both the body bolster and the truck bolster, permitting the truck to swivel beneath the car body while the stress is taken by the center plate. Historical Examples