glazing

noun6

1. •
   The act or process of glazing or an instance thereof.
2. •
   The part of a window or wall made of glass or another transparent material.
3. •
   All the windows of a building.
4. •
   The art of covering with a vitreous substance.
5. •
   The material used in such act or process; glaze.

   • Before new glazier's putty can be applied, the various bits of old glazing must be scraped off.
6. •
   Semi-transparent colours painted thinly over others to modify the effect.