stria vs striation

stria

noun
  • One of the fillets between the flutes of columns, etc.. 

  • A stretch mark. 

  • A stripe, usually one of a set of parallel stripes. 

striation

noun
  • The action of marking with a stria. 

  • One of a number of parallel grooves and ridges in a rock or rocky deposit, formed by repeated twinning or cleaving of crystals. 

  • The result of being marked with a stria. 

  • a parallel series of small grooves, channels, or impressions typically within a metal roof panel used to help reduce the potential for oil-canning. 

  • One of a number of parallel scratch lines in rock outcrops, formed when glaciers dragged rocks across the landscape. 

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