galactose vs glucose

galactose

noun
  • A monosaccharide found, along with lactose, in dairy products, and is synthesized by the body where it is found associated with glycolipids and glycoproteins. 

glucose

noun
  • A simple monosaccharide (sugar) with a molecular formula of C₆H₁₂O₆; it is a principle source of energy for cellular metabolism. 

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