comber vs fringing reef

comber

noun
  • A long, curving wave breaking on the shore. 

  • Serranus cabrilla, the gaper, a fish found in European waters. 

  • A person who combs wool, etc. 

  • A machine that combs wool, etc. 

fringing reef

noun
  • A completely shallow coral reef adjacent to a coast. 

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