clementine vs tangerine

clementine

noun
  • A type of small, sweet orange, the result of a cross between a tangerine and Seville orange. 

tangerine

noun
  • A deep yellowish-orange colour, like that of a tangerine fruit. 

  • tangerine 

  • A tree that produces tangerines. 

  • Any of several varieties of mandarin oranges. 

adj
  • Of a deep yellowish-orange colour. 

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