lanceolate vs wedge-shaped

lanceolate

adj
  • Having the general shape of a lance; much longer than wide, with the widest part lower than the middle and a pointed apex. 

  • Of a class of knapped stone points, made without a stem, shoulders, notches, or other features that aid in attachment to a shaft. 

noun
  • Any such artefact 

wedge-shaped

adj
  • Shaped like a wedge 

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