asyndeton vs metonymy

asyndeton

noun
  • A stylistic scheme in which conjunctions such as "or" and "and" are deliberately omitted from a series of words, phrases, or clauses. 

metonymy

noun
  • The use of a single characteristic or part of an object, concept or phenomenon to identify the entire object, concept, phenomenon or a related object. 

  • A metonym. 

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