Seam

noun

1. A folded-back and stitched piece of fabric; especially, the stitching that joins two or more pieces of fabric.
2. A suture.
3. A thin stratum, especially of an economically viable material such as coal or mineral.
4. The stitched equatorial seam of a cricket ball; the sideways movement of a ball when it bounces on the seam.
5. A joint formed by mating two separate sections of materials.

   "Seams can be made or sealed in a variety of ways, including adhesive bonding, hot-air welding, solvent welding, using adhesive tapes, sealant, etc."