Look up vitreous in Wiktionary, the free dictionary.

Vitreous may refer to:

• Glass, an amorphous solid material
• Vitreous enamel, a coating on metal, glass or ceramic
• Vitreous lustre, a glassy luster or sheen on a mineral surface
• Vitreous humour, a clear gel that fills the space between the lens and the retina in vertebrate eyes
• Vitreous membrane, a layer of collagen separating the vitreous humour from the rest of the eye

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