vitreous

adjective

1. 1

   (of ceramics) having the surface made shiny and nonporous by fusing a vitreous solution to it

   glazed pottery

   glassy porcelain

2. 2

   relating to or resembling or derived from or containing glass

   vitreous rocks

   vitreous silica

3. 3

   of or relating to or constituting the vitreous humor of the eye

   the vitreous chamber