1.NounRotation around a vertical axis that makes a ball or other object curve in flight.
"When a right-handed golfer hits a ball with a clockwise sidespin (when viewed from the top), it is called a fade or if extreme a slice and the flight of the ball will curve to the right.; When a right-handed golfer hits a ball with an anticlockwise sidespin (when viewed from the top), it is called a draw or if extreme a hook and the flight of the ball will curve to the left."