Cut line: The curve which was followed by the waterjet cutting stream to make the part.
Cut edge: The parts of the material exposed by waterjet cutting. It is perpendicular to the faces of the part.
Face: The flat, unmachined areas of the finished part. Each waterjet cut part has two faces: the top face, where the waterjet stream enters the material, and the bottom face, where the material originally rested on slats and where the waterjet stream exits. The face is perpendicular to the cut edge(s).
Frosting: Abrasion around the cut line caused by stray abrasive particles from the waterjet cutting stream.