Category:Vitreous

Vit"re*ous, a. Etym: [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.

2. Of or pertaining to glass; derived from glass; as, vitreous Electricity. 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 (zoöl.), 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.