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spiral noun

  /ˈspaɪɹəl/ , /ˈspɑɪɹəl/
  • (geometry) A curve that is the locus of a point that rotates about a fixed point while continuously increasing its distance from that point.
spiraali, kierukka
  • A self-sustaining process with a lot of momentum involved, so it is difficult to accelerate or stop it at once.
kierre
  • (informal) A helix.
kierre, kierukka
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