glazing vs porcelain

glazing

noun
  • The material used in such act or process; glaze. 

  • The act or process of glazing or an instance thereof. 

  • All the windows of a building. 

  • The art of covering with a vitreous substance. 

  • The part of a window or wall made of glass or another transparent material. 

  • Semi-transparent colours painted thinly over others to modify the effect. 

porcelain

noun
  • A hard white translucent ceramic, originally made by firing kaolin, quartz, and feldspar at high temperatures but now also inclusive of similar artificial materials; also often (figurative) such a material as a symbol of the fragility, elegance, etc. traditionally associated with porcelain goods. 

  • Synonym of cowrie. 

  • Synonym of china: porcelain tableware. 

  • A kind of pigeon with deep brown and off-white feathers. 

  • An object made of porcelain, (particularly) art objects or items of tableware. 

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