monkfish vs seiner

monkfish

noun
  • Any large bottom-dwelling anglerfish of the genus Lophius, such as Lophius piscatorius, of the Atlantic, having a large head and mouth. 

  • Angel sharks of the genus Squatina. 

seiner

noun
  • A fishing vessel used for seining. 

  • A fisherman who uses a seine to catch fish. 

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