Adjective
1. of or relating to or constituting the vitreous humor of the eye;
"the vitreous chamber"2. relating to or resembling or derived from or containing glass;
"vitreous rocks""vitreous silica"3. (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"