saline vs seawater

saline

noun
  • A salt spring; a place where salt water is collected in the earth. 

  • Water containing dissolved salt. 

adj
  • Resembling salt. 

  • Containing salt; salty. 

seawater

noun
  • The saltwater of a sea or ocean. 

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

  • Consisting of seawater. 

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