slalom vs spiral

slalom

verb
  • To move in a slalom-like manner. 

  • To race in a slalom. 

noun
  • A race or competition wherein participants each perform the sport of slalom. 

  • A course used for the sport of slalom. 

  • The sport of skiing in a zigzag course through gates. (Often used attributively) 

  • Any similar activity on other vehicles, including canoes and water skis. 

spiral

verb
  • To move along the path of a spiral or helix. 

  • To increase continually. 

  • To cause something to spiral. 

noun
  • A helix. 

  • A section of track that forms a circle and crosses over itself, used for gaining height in mountainous territory. 

  • A self-sustaining process with a lot of momentum involved, so it is difficult to accelerate or stop it at once. 

  • A curve that is the locus of a point that rotates about a fixed point while continuously increasing its distance from that point. 

adj
  • Helical, like a spiral. 

How often have the words slalom and spiral occurred in a corpus of books? (source: Google Ngram Viewer )