V-shaped vs conic

V-shaped

adj
  • Shaped like the letter V; especially, designating one of the two major types of valley (the other being U-shaped), typically formed by flowing water. 

conic

adj
  • Synonym of conical 

noun
  • A conic section. 

How often have the words V-shaped and conic occurred in a corpus of books? (source: Google Ngram Viewer )