enamel vs magnifying glass

enamel

noun
  • An opaque, glassy coating baked onto metal or ceramic objects. 

  • The hard covering on the exposed part of a tooth. 

  • A coating that dries to a hard, glossy finish. 

  • A cosmetic intended to give the appearance of a smooth and beautiful complexion. 

verb
  • To form a glossy surface like enamel upon. 

  • To variegate with colours, as if with enamel. 

  • To coat or decorate with enamel. 

  • To disguise with cosmetics, as a woman's complexion. 

magnifying glass

noun
  • An instrument made of convex glass, used to magnify. 

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