معنی کلمه :‌ retraction

A coat worn over the other clothing; a greatcoat; a topcoat.

The state or condition of a part when drawn back, or towards the center of the body.

The act of retracting or shortening; as, the retraction of a severed muscle; the retraction of a sinew.

The act of retracting, or drawing back; the state of being retracted; as, the retraction of a cat's claws.