What is the definition or description of: hand laceration?

A cut on the hand.: Hand lacerations can range from minor things like a paper cut to major injuries where tendons and nerves are damaged.

A cut: Any cut through the skin of the hand may be described as a "hand laceration." the significance of the laceration depends on the depth of the cut (often determined by the instrument or mechanism) and the structures that my be injured in proximity (nerves, arteries, or tendons). Because of these significant structures, such lacerations are often referred for repair by specialist hand surgeons.

Laceration to hand: Laceration to any part of the hand. This generally requires specialized treatment by a hand surgeon due to the need to preserve the functional properties of the hand.