hairpin bend vs slalom

hairpin bend

noun
  • An acute curve (often one of a series) in a road, especially on a steep incline. 

slalom

noun
  • A course used for the sport of slalom. 

  • A race or competition wherein participants each perform 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. 

verb
  • To move in a slalom-like manner. 

  • To race in a slalom. 

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