alkaline vs saline

alkaline

adj
  • Of, or relating to an alkali, one of a class of caustic bases. 

  • Having a pH greater than 7. 

noun
  • An alkaline battery. 

saline

adj
  • Resembling salt. 

  • Containing salt; salty. 

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

  • Water containing dissolved salt. 

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