shampoo vs shampooing

shampoo

noun
  • An instance of washing the hair or other fibres with shampoo. 

  • Champagne. 

  • A traditional Indian and Persian body massage given after pouring warm water over the body and rubbing it with extracts from herbs. 

  • A commercial liquid soap product for washing hair or other fibres/fibers, such as carpets. 

verb
  • To wash (i.e. the hair, carpet, etc.) with shampoo. 

  • To wash one's own hair with shampoo. 

  • To press or knead the whole surface of the body of (a person), and at the same time to stretch the limbs and joints, in connection with the hot bath. 

shampooing

noun
  • The act of cleaning something with shampoo. 

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