Noun
sidespin (countable and uncountable, plural sidespins)
Rotation 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.
Another difference is that unlike backspin and topspin, sidespin will have relatively very little effect on the bounce of the ball, much in the same way that a spinning top would not travel left or right if its axis of rotation were exactly vertical. Source: Internet
Sidespin can also be employed in offensive rally strokes, often from a greater distance, as an adjunct to topspin or backspin. Source: Internet
Sidespin can be used effectively with a smash to alter the ball's trajectory significantly, although most intermediate players will smash the ball with little or no spin. Source: Internet
This makes sidespin a useful weapon in service, because it is less easily recognized when bouncing, and the ball "loses" less spin on the bounce. Source: Internet
Sidespin This type of spin is predominantly employed during service, wherein the contact angle of the racket can be more easily varied. Source: Internet
Unlike the two aforementioned techniques, sidespin causes the ball to spin on an axis which is vertical, rather than horizontal. Source: Internet