antacid vs soluble

antacid

noun
  • An agent that counteracts or neutralizes acidity, especially in the stomach. 

adj
  • Counteracting or neutralizing acidity, especially in the stomach. 

soluble

adj
  • Able to be dissolved. 

  • Able to be solved or explained. 

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