The hollow part of a curved or bent timber, the convex part of which is the back.
The bottom section of a curve.
The belly is the curving part of the blade edge. Bellies enhance slicing and may be plain or serrated. One note, the point of the knife becomes less sharp the larger the belly is. When choosing a knife you should decide whether penetration or slicing is the most important, and keep the design of this part of the knife in mind.
The area of a liner that has an increased inside diameter from nominal, appearing convex (may be caused by a weak container).
The curved/ fattest part of the blade's edge. The belly enhances slicing and may be plain or serrated. The larger the belly is, the blunter the point of the knife becomes.
a. The concave inside surface of a felloe (q.v.) b. The inner curved surface of a felloe into which the spoke "nock" abuts in part.
The curved part of the blades edge. Click here for illustration