1. (

• vitreous ,

) of or relating to or constituting the vitreous humor of the eye; "the vitreous chamber" ;

2. (

• vitreous

) relating to or resembling or derived from or containing glass; "vitreous rocks"; "vitreous silica" ;

3. (

• glassy ,
• vitreous ,
• vitrified

) (of ceramics) having the surface made shiny and nonporous by fusing a vitreous solution to it; "glazed pottery"; "glassy porcelain"; "hard vitreous china used for plumbing fixtures" ;