80 pxArchimedean spiral



  • A curve that is the locus of a point that rotates about a fixed point while continuously increasing its distance from that point.
  • A helix.
  • A self-sustaining process with a lot of momentum involved, so it is difficult to accelerate or stop it at once.
  • A section of track that forms a circle and crosses over itself, used for gaining height in mountainous territory.



  • To move along the path of a spiral or helix.
  • To cause something to spiral.
  • To increase continually.


  • From Middle French spirale, from Medieval Latin spiralis, from Latin spira, from Ancient Greek σπείρα ("wreath, coil, twist").

Modern English dictionary

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