vit·re·ous (vĭt'rē-əs)
adj.

1. Of, relating to, resembling, or having the nature of glass; glassy.
2. Obtained or made from glass.
3. Of or relating to the vitreous humor.

n.
The vitreous humor.

[From Latin vitreus, from vitrum, glass.]

vitreosity vit're·os'i·ty (-ŏs'ĭ-tē) or vit're·ous·ness (-əs-nĭs) n.

---

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.

---