flagellum vs whiplash

flagellum

noun
  • A whip 

  • In protists, a long, whiplike membrane-enclosed organelle used for locomotion or feeding. 

  • In bacteria, a long, whiplike proteinaceous appendage, used for locomotion. 

whiplash

noun
  • The lash of a whip. 

  • An injury to the upper spine connected to a violent jerk of the head in either a backward or forward or side to side direction, resembling the motion of a whip. 

  • An abrupt and unexpected change, or the resulting feeling of shock. 

verb
  • To jerk back and forth; to buffet. 

  • To lash as if with a whip. 

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