landmark vs quadrat

landmark

noun
  • An object that marks the boundary of a piece of land (usually a stone, or a tree). 

  • A recognizable natural or man-made feature used for navigation. 

  • A major event or discovery. 

  • A notable location with historical, cultural, or geographical significance. 

verb
  • To officially designate a site or building as a landmark. 

quadrat

noun
  • An area of land, marked for studying its plants, animals, soil, natural processes, etc. 

  • A virtual rectangular subdivision of a line or column of hieroglyphs within which a group of hieroglyphs is arranged. 

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