dipteran vs glissade

dipteran

noun
  • An insect of the large order Diptera; a fly. 

adj
  • Relating to or denoting dipterans. 

glissade

noun
  • A gliding step beginning and ending in a demi-plié in second position (Wikipedia). 

  • A fencing move that may disarm the opponent (Wikipedia). 

  • A sliding, as down a snow slope in the Alps (Wikipedia). 

  • A move in some dances such as the galop (Wikipedia). 

verb
  • To perform a glissade. 

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