monosaccharide vs sweetling

monosaccharide

noun
  • A simple sugar such as glucose, fructose or deoxyribose that has a single ring 

sweetling

noun
  • A small, sweet thing. 

  • Darling; sometimes used as a term of endearment. 

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