eyelash vs filament

eyelash

noun
  • one of the hairs which grow along the edge of eyelids 

filament

noun
  • The stalk of a flower stamen, supporting the anther. 

  • A continuous object, limited in length only by its spool, and not cut to length. 

  • A fine thread or wire. 

  • Such a wire, as can be heated until it glows, in an incandescent light bulb or a thermionic valve. 

  • A massive, thread-like structure, such as those gaseous ones which extend outward from the surface of the sun, or such as those (much larger) ones which form the boundaries between large voids in the universe. 

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