vitreo-, vitre-, vitr- +

1. To convert into, or to change to, a vitriol; that is, to make into sulphuric acid or a sulphate.
2. To subject to the action of, or to impregnate with, vitriol.

Changed into a vitriol or a sulphate, or subjected to the action of sulphuric acid or of a sulphate; as, vitriolated potash, i. e., potassium sulphate.

Turning into sulphuric acid or into vitrol.

1. The act, process, or result of vitriolating.
2. The act or process of converting into sulphuric acid or into vitriol.

1. Harsh or corrosive in tone; very caustic; scathing: "He hurled vitriolic criticism at her performance." 2. Of or referring to vitriol; which is derived from, or resembles, vitriol; such as, a vitriolic taste; especially, virulence of feeling or of speech.
3. A reference to a substance, especially a strong acid; capable of destroying or eating away by chemical action.
4. Sulfuric acid, a highly corrosive substance, was formerly known as "oil of vitriol" or simply "vitriol".

It was named vitriol because of the glassy appearance of its salts.

In a caustic vitriolic manner.

1. To convert into a vitriol; to vitriolate.
2. To injure or to burn (a person) with vitriol, or sulphuric acid, by throwing it on the face.

A glass painter.

1. A kind of glass which is very hard and difficult to fuse.
2. A reference to an insulator in electrical lamps and other apparatus (apparatuses).

An inflammation of the vitreous humor of the eye.

Any porphyritic igneous rock having a pronounced glassy groundmass; glass porphry.

A diascopy or an examination of a skin lesion in which the blood is temporarily excluded from the lesion with a firm pressure on the area of study by using a glass slide or other transparent material.

Excluding the blood from the area facilitates the detection of cellular and other deposits in the dermis (skin).