bitter orange vs lumia

bitter orange

noun
  • The fruit of these species. 

  • A citrus tree of the species Citrus limetta. 

  • A citrus tree of the species Citrus ×aurantium, also called Citrus aurantium. 

lumia

noun
  • A certain pear-shaped citrus fruit. 

  • The use of light patterns as an expressive art form, unaccompanied by sound. 

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