conoid vs wedge-shaped

conoid

adj
  • Shaped like a cone; conical. 

noun
  • Anything shaped like a cone 

  • A Catalan surface all of whose rulings intersect some fixed line 

  • A solid formed by the revolution of a conic section about its axis 

  • The pineal gland 

wedge-shaped

adj
  • Shaped like a wedge 

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