convex vs indented

convex

adj
  • Curved or bowed outward like the outside of a bowl, circle, or sphere. 

  • arranged such that for any two points in the set, a straight line between the two points is contained within the set. 

  • having no internal angles greater than 180 degrees. 

  • having an epigraph that is a convex set. 

noun
  • A playing card made convex for use in cheating. 

  • A small convex mirror used to cheat by observing other players' cards. 

  • Any convex body or surface. 

indented

adj
  • Cut in the edge into points or inequalities, like teeth; dented on the surface; jagged; notched; stamped in. 

  • Having an irregular, uneven; sinuous; undulating. 

  • Notched like the part of a saw consisting of the teeth; serrated. 

  • Bound out by an indenture; apprenticed; indentured. 

  • Notched along the margin with a different colour, like the feathers of some birds. 

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