Left-arm orthodox spin is a type of bowling

Bowling (cricket)

In the sport of cricket, bowling is the action of propelling the ball toward the wicket defended by a batsman. A player skilled at bowling is called a bowler; a bowler who is also a competent batsman is known as an all-rounder...

 in the sport

Sport

A Sport is all forms of physical activity which, through casual or organised participation, aim to use, maintain or improve physical fitness and provide entertainment to participants. Sport may be competitive, where a winner or winners can be identified by objective means, and may require a degree...

 of cricket

Cricket

Cricket is a bat-and-ball game played between two teams of 11 players on an oval-shaped field, at the centre of which is a rectangular 22-yard long pitch. One team bats, trying to score as many runs as possible while the other team bowls and fields, trying to dismiss the batsmen and thus limit the...

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Left-arm orthodox spin is bowled by a left arm bowler using the fingers

Finger spin

Finger spin is a type of bowling in the sport of cricket. It refers to the cricket technique and specific hand movements associated with imparting a particular direction of spin to the cricket ball. The other spinning technique, generally used to spin the ball in the opposite direction, is wrist spin...

 to spin the ball from right to left of the cricket pitch (from the bowler's perspective). Left arm orthodox spin bowlers generally attempt to drift the ball in the air into a right-handed batsman, and then turn it away from the batsman (toward off-stump) upon landing on the pitch.