A cut is an injury that results in a break or opening in the skin.
A laceration is a jagged, irregular cut.
A puncture is a wound made by a pointed object (like a nail, knife, or sharp tooth).
Marx JA, Hockberger RS, Walls RM, eds. Rosen’s Emergency Medicine: Concepts and Clinical Practice. 5th ed. St. Louis, Mo: Mosby; 2002.