A series of parallel yarns extended lengthwise in a loom, thereby forming the lengthwise threads of a fabric. They are usually twisted tighter than the filling yarns and are sized so as to protect them during the weaving of the filling threads.
A subspace in the galaxy of warhammer 40k. Though warp jumps allow for fast travel, the amount of Chaos Daemons that inhabit such a place make it dangerous. Imperial ships navigate the warp using the Astronomican
The Chaos frigate made the warp jump right where the marine barge had planned.