dragon vs lusus naturae

dragon

noun
  • A legendary serpentine or reptilian creature. 

  • In Western mythology, a gigantic beast, typically reptilian with leathery bat-like wings, lion-like claws, scaly skin and a serpent-like body, often a monster with fiery breath. 

  • A background process similar to a daemon. 

  • A Komodo dragon. 

  • Something very formidable or dangerous. 

  • The (historical) Chinese empire or the People's Republic of China. 

  • A transvestite man, or more broadly a male-to-female transgender person. 

  • A type of playing-tile (red dragon, green dragon, white dragon) in the game of mahjong. 

  • In Eastern mythology, a large, snake-like monster with the eyes of a hare, the horns of a stag and the claws of a tiger, usually beneficent. 

  • Any of various agamid lizards of the genera Draco, Physignathus or Pogona. 

  • A fierce and unpleasant woman; a harridan. 

  • A variety of carrier pigeon. 

  • A short musket hooked to a swivel attached to a soldier's belt; so called from a representation of a dragon's head at the muzzle. 

  • The constellation Draco. 

  • A luminous exhalation from marshy ground, seeming to move through the air like a winged serpent. 

lusus naturae

noun
  • An organism exhibiting marked such deviation from the norm, seeming to be the result of sportive design; a freak of nature. 

  • A sportive quality in Nature to which abnormal forms were formerly ascribed; a supposed capricious act of Nature regarded as the cause and origin of anomalies in a given organism. 

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