(in tennis and other racket sports) a stroke played with the back of the hand facing in the direction of the stroke, with the arm across the body: [as modifier]:a backhand volley
a blow or stroke delivered in a similar way to a backhand in tennis and other racket sports: [as modifier]:a backhand blow hammered into his wrist
verb
[with object]
strike with a backhanded blow or stroke:in a flash, he backhanded Ace across the jaw
backhand in other Oxford dictionaries
Definition of backhand in the US English dictionary
