glass

adj. made of glass; fitted with glass

n. transparent and brittle material produced by fusing sand and other materials (used for windows, bottles, etc.); cup, drinking container; window pane; lens; anything made from glass

v. fit or cover with panes of glass; frame (a picture)

Glass is a noncrystalline material that can maintain indefinitely, if left undisturbed, its overall form and amorphous microstructure at a temperature below its glass transition temperature. Glass synthesis is achieved by quenching a glass forming liquid through its glass transition temperature sufficiently rapidly to avoid the formation of a regular crystal lattice, producing an amorphous solid. Amorphous solids may also be formed by methods other than melt quenching, such as vapour deposition or the sol-gel method. Silica glass may be produced by using sand as a raw material (or "quartz sand") that contains almost 100 rystalline  silica in the form of quartz. The most common method for glass pane production is using molten tin, where the molten glass floats on top of the perfectly flat molten tin, thus giving it the name "float glass". Glass is sometimes created naturally from volcanic magma. This glass is called obsidian, and is usually black with impurities. Obsidian is a raw material for flintknappers, who have used it to make extremely sharp knives since the stone age.
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(v. t.)
To smooth or polish anything, as leater, by rubbing it with a glass burnisher.
  

(v. t.)
To reflect, as in a mirror; to mirror; -- used reflexively.
  

(v. t.)
To cover or furnish with glass; to glaze.
  

(v. t.)
To case in glass.
  

(v. t.)
Anything made of glass.
  

(v. t.)
Any substance having a peculiar glassy appearance, and a conchoidal fracture, and usually produced by fusion.
  

(v. t.)
An optical glass; a lens; a spyglass; -- in the plural, spectacles; as, a pair of glasses; he wears glasses.
  

(v. t.)
A weatherglass; a barometer.
  

(v. t.)
A vessel filled with running sand for measuring time; an hourglass; and hence, the time in which such a vessel is exhausted of its sand.
  

(v. t.)
A looking-glass; a mirror.
  

(v. t.)
A hard, brittle, translucent, and commonly transparent substance, white or colored, having a conchoidal fracture, and made by fusing together sand or silica with lime, potash, soda, or lead oxide. It is used for window panes and mirrors, for articles of table and culinary use, for lenses, and various articles of ornament.
  

(v. t.)
A drinking vessel; a tumbler; a goblet; hence, the contents of such a vessel; especially; spirituous liquors; as, he took a glass at dinner.
  

1 . In the strict sense, a state of matter. [FAA] 2. In fiber-optic communication, any of a number of noncrystalline, amorphous inorganic substances, formed, by heating, from metallic or semiconductor oxides or halides, and used as the material for fibers. Note: The most common glasses are based on silicon dioxide (SiO2). [After FAA]

General LAnguage for System Semantics.
An Esprit project at the University of Nijmegen.
ftp://phoibos.cs.kun.nl/pub/GLASS.
(1995-01-25)

(IBM) silicon.
[Jargon File]