%vitreou%

a. [ L. vitreous, from vitrum glass; perhaps akin to videre to see (see Vision). Cf. Varnish. ] 1. Consisting of, or resembling, glass; glassy; as, vitreous rocks. [ 1913 Webster ]

2. Of or pertaining to glass; derived from glass; as, vitreous electricity. [ 1913 Webster ]

Vitreous body (Anat.), the vitreous humor. See the Note under Eye. --
Vitreous electricity (Elec.), the kind of electricity excited by rubbing glass with certain substances, as silk; positive electricity; -- opposed to resinous, or negative, electricity. --
Vitreous humor. (Anat.) See the Note under Eye. --
Vitreous sponge (Zool.), any one of numerous species of siliceous sponges having, often fibrous, glassy spicules which are normally six-rayed; a hexactinellid sponge. See Venus's basket, under Venus. [ 1913 Webster ]