oceanic vs seawater

oceanic

adj
  • Of or relating to the ocean. 

  • Resembling an ocean in vastness or extent. 

  • Having a climate that has a relatively small difference in temperature between the warmest and coldest times of the year, and relatively high rainfall 

  • Living in, produced by, or frequenting the ocean. 

seawater

adj
  • Consisting of seawater. 

  • Associated in some way with seawater, or intended for dealing with seawater. 

noun
  • The saltwater of a sea or ocean. 

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