glass vs reflecting surface

glass

noun
  • The quantity of liquid contained in such a vessel. 

  • The clear, protective screen surrounding a hockey rink. 

  • A barometer. 

  • Transparent or translucent. 

  • An amorphous solid, often transparent substance, usually made by melting silica sand with various additives (for most purposes, a mixture of soda, potash and lime is added). 

  • Lenses, considered collectively. 

  • Glassware. 

  • The backboard. 

  • A magnifying glass or telescope. 

  • A mirror. 

  • Any amorphous solid (one without a regular crystal lattice). 

  • A vessel from which one drinks, especially one made of glass, plastic, or similar translucent or semi-translucent material. 

verb
  • To fit with glass; to glaze. 

  • To become glassy. 

  • To enclose in glass. 

  • To strike (someone), particularly in the face, with a drinking glass with the intent of causing injury. 

  • To bombard an area with such intensity (nuclear bomb, fusion bomb, etc) as to melt the landscape into glass. 

  • To view through an optical instrument such as binoculars. 

  • To smooth or polish (leather, etc.), by rubbing it with a glass burnisher. 

  • To make glassy. 

reflecting surface

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