Biography Wikipedia
from Wikipedia:
Vitreous may refer to:
Glass, an amorphous solid materialVitreous enamel, a coating on metal, glass or ceramicVitreous lustre, a glassy luster or sheen on a mineral surfaceVitreous humour, a clear gel that fills the space between the lens and the retina in vertebrate eyesVitreous membrane, a layer of collagen separating the vitreous humour from the rest of the eye
