selvages

noun

1. 1.The edge of a woven fabric, where the weft (side-to-side) threads run around the warp (top to bottom) threads, creating a finished edge.
2. 2.Any edge of fabric finished so as to prevent raveling.
3. 3.The excess area of any printed or perforated sheet, such as the border on a sheet of postage stamps or the wide margins of an engraving.
4. 4.A distinct border of a mass of igneous rock. It is usually fine-grained or glassy due to rapid cooling.
5. 5.Clay-like material found along and around a geological fault.