saline vs salinity

saline

noun
  • Water containing dissolved salt. 

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

adj
  • Resembling salt. 

  • Containing salt; salty. 

salinity

noun
  • The concentration of salt in a solution. 

  • The quality of being saline. 

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