amphibious vs freshwater

amphibious

adj
  • Occurring on both land and water. 

  • Capable of functioning on land or in water. 

freshwater

adj
  • Consisting of fresh water. 

  • neoclassical, in reference to U.S. macroeconomics and economics departments near the Great Lakes. 

  • Unskilled as a seaman. 

  • Living in fresh water. 

noun
  • A body of fresh water 

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