inflatable vs pedalo

inflatable

noun
  • A boat or dinghy that may be inflated when needed. 

  • Any other structure, artwork etc. that is inflated. 

adj
  • Able to be inflated or blown up. 

pedalo

noun
  • A small boat propelled by pedals that directly turn external paddles, used for recreation. 

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