What is "knee pad"

alt. A protective garment worn on a knee to protect it from injury, for example due to a blow or a fall. n. A protective garment worn on a knee to protect it from injury, for example due to a blow or a fall.

n. protective garment consisting of a pad worn by football or baseball or hockey players

Knee pads or kneepads are protective gear worn on knees to protect them against impact injury from falling to the ground or hitting an obstacle, or to provide padding for extended kneeling.