A door made of glass.

A vitreous sponge of the order Hexactinellida, with a long stem, consisting of a bundle of long glassy siliceous fibres twisted together.

plural of glass-rope

Synonym of Claude glass

plural of Claude Lorraine glass

A gland found within the eye's orbit in vertebrates that possess a nictitating membrane.

An external skin gland on the back, neck, and shoulder of toads and some frogs and salamanders, which secretes a milky alkaloid substance to deter predators.

cellophane noodle

One who cuts glass to make objects from it. / A device for cutting through glass.

(anatomy) A small paired sebaceous gland found near the anus in many mammals, secreting a liquid that is used for identification of members within the species.