Vĭt're-ous, a.

a. [Lat. vitreus, from vitrum, glass; It., Sp., & Pg. vitreo, Fr. vitreux, vitré.]

1. Of, pertaining to, or derived from glass; as, vitreous electricity.
2. Consisting of glass; as, a vitreous substance.
3. Resembling glass; as, the vitreous humor of the eye, so called from its resembling melted glass. See HUMOR.