- an organ or part by means of which a spider, insect larva, or the like spins a silky thread for its web or cocoon.
- a metal plate or cup with tiny holes through which a chemical solution is extruded to form continuous filaments, as of rayon, nylon, or polyester.
- any of several organs in spiders and certain insects through which silk threads are exuded
- a finely perforated dispenser through which a viscous liquid is extruded in the production of synthetic fibres
