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The word filament, which is descended from Latin filum meaning "thread", is used in English for a variety of thread-like structures, including:



  • Myofilament, filaments of myofibrils constructed from proteins
  • Protein filament, a long chain of protein subunits, such as those found in hair or muscle
  • Part of a stamen, the male part of a flower
  • Hypha, a thread-like cell in fungi and Actinobacteria
  • Filamentation, an elongation of individual bacterial cells


  • Fiber, natural or manmade substances significantly longer than they are wide
  • Yarn (more loosely)
  • Filament fiber, fiber that comes in a continuous long length


Physics and engineering[edit]

See also[edit]