conk vs gastropod

conk

noun
  • The shelf- or bracket-shaped fruiting body of a bracket fungus (also called a shelf fungus), i.e. a mushroom growing off a tree trunk. 

  • A nose, especially a large one. 

verb
  • To become unconscious. 

  • To hit, especially on the head. 

  • To fail or show signs of failing, cease operating, break down. 

gastropod

noun
  • Any member of a class of mollusks (Gastropoda) that includes snails and slugs; univalve mollusk. 

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