glass (noun)

a brittle transparent solid with irregular atomic structure

glass, drinking glass (noun)

a container for holding liquids while drinking

glass, glassful (noun)

the quantity a glass will hold

field glass, glass, spyglass (noun)

a small refracting telescope

methamphetamine, methamphetamine hydrochloride, Methedrine, meth, deoxyephedrine, chalk, chicken feed, crank, glass, ice, shabu, trash (noun)

an amphetamine derivative (trade name Methedrine) used in the form of a crystalline hydrochloride; used as a stimulant to the nervous system and as an appetite suppressant

looking glass, glass (noun)

a mirror; usually a ladies' dressing mirror

glass (verb)

glassware collectively

"She collected old glass"

glass, glaze (verb)

furnish with glass

"glass the windows"

glass (verb)

scan (game in the forest) with binoculars

glass, glass in (verb)

enclose with glass

"glass in a porch"

glass (verb)

put in a glass container

glaze, glass, glass over, glaze over (verb)

become glassy or take on a glass-like appearance

"Her eyes glaze over when she is bored"

glass (Noun)

A solid, transparent substance made by melting sand with a mixture of soda, potash and lime.

glass (Noun)

A vessel from which one drinks, especially one made of glass, plastic, or similar translucent or semi-translucent material.

glass (Noun)

The quantity of liquid contained in such a vessel.

glass (Noun)

Amorphous (non-crystalline) substance.

glass (Noun)

Glassware.

glass (Noun)

A mirror.

glass (Noun)

A magnifying glass or telescope.

glass (Noun)

The backboard.

glass (Noun)

The clear, protective screen surrounding a hockey rink.

glass (Verb)

To furnish with glass; to glaze.

glass (Verb)

To view through an optical instrument such as binoculars

glass (Verb)

To enclose with glass.

glass (Verb)

To strike (someone), particularly in the face, with a drinking glass with the intent of causing injury.

glass (Verb)

To bombard an area with such intensity (nuclear bomb, fusion bomb, etc) as to melt the landscape into glass.

glass (Noun)

A barometer.

Glass

Glass is an amorphous solid material that exhibits a glass transition, which is the reversible transition in amorphous materials from a hard and relatively brittle state into a molten or rubber-like state. Glasses are typically brittle and can be optically transparent. The most familiar type of glass, used for centuries in windows and drinking vessels, is soda-lime glass, composed of about 75% silica plus sodium oxide from soda ash, lime, and several minor additives. Often, the term glass is used in a restricted sense to refer to this specific use. From the 19th century, various types of fancy glass started to become significant branches of the decorative arts. Objects made out of glass include not only traditional objects such as vessels, paperweights, marbles, beads, but an endless range of sculpture and installation art as well. Colored glass is often used, though sometimes the glass is painted, innumerable examples exist of the use of stained glass. In science, however, the term glass is usually defined in a much wider sense, including every solid that possesses a non-crystalline structure and that exhibits a glass transition when heated towards the liquid state. In this wider sense, glasses can be made of quite different classes of materials: metallic alloys, ionic melts, aqueous solutions, molecular liquids, and polymers. For many applications polymer glasses are a lighter alternative to traditional silica glasses.

Glass

Glass is a non-crystalline, often transparent amorphous solid, that has widespread practical, technological, and decorative use in, for example, window panes, tableware, and optics. Glass is most often formed by rapid cooling (quenching) of the molten form; some glasses such as volcanic glass are naturally occurring. The most familiar, and historically the oldest, types of manufactured glass are "silicate glasses" based on the chemical compound silica (silicon dioxide, or quartz), the primary constituent of sand. Soda-lime glass, containing around 70% silica, account for around 90% of manufactured glass. The term glass, in popular usage, is often used to refer only to this type of material, although silica-free glasses often have desirable properties for applications in modern communications technology. Some objects, such as drinking glasses and eyeglasses, are so commonly made of silicate-based glass that they are simply called by the name of the material. Although brittle, silicate glass is extremely durable, and many examples of glass fragments exist from early glass-making cultures. Archaeological evidence suggests glass-making dates back to at least 3,600 BCE in Mesopotamia, Egypt, or Syria. The earliest known glass objects were beads, perhaps created accidentally during metal-working or the production of faience. Due to its ease of formability into any shape, glass has been traditionally used for vessels: bowls, vases, bottles, jars and drinking glasses. In its most solid forms, it has also been used for paperweights and marbles. Glass can be coloured by adding metal salts or painted and printed with vitreous enamels, leading to its use in stained glass windows and other glass art objects. The refractive, reflective and transmission properties of glass make glass suitable for manufacturing optical lenses, prisms, and optoelectronics materials. Extruded glass fibres have application as optical fibres in communications networks, thermal insulating material when matted as glass wool so as to trap air, or in glass-fibre reinforced plastic (fibreglass).