Definition of threader in English:


Line breaks: thread¦er


  • 1A device for passing a thread through the needle and guides of a sewing machine.
    More example sentences
    • To thread texturized nylon, use a needle threader or put a dab of seam sealant on the thread end and let it dry before threading the needle.
    • There's a darning needle, of course, a threader, a hemostat (the instrument doctors use to put in sutures), and an Army survival tool.
  • 1.1A factory worker who attaches spools of yarn to a loom.
  • 2A device for cutting a spiral ridge on the outside of a screw or the inside of a hole.

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