mastodonic vs pyramidal

mastodonic

adj

  • huge, gigantic 

  • Of, or pertaining to, the mastodon. 

pyramidal

adj

  • Tetragonal. 

  • Pyramid-shaped. 

noun

  • One of the carpal bones. 

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