dipteran vs fly ball

dipteran

noun

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

adj

  • Relating to or denoting dipterans. 

fly ball

noun

  • A batted ball that has been hit into the air above the outfield; a fly. 

  • A geek; beatnik. 

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