GLASS


Meaning of GLASS in English

I

Solid material, typically a mix of inorganic compounds, usually transparent or translucent, hard, brittle, and impervious to the natural elements ("vitreous properties").

It is made by cooling molten ingredients fast enough so no visible crystals form. A poor conductor of heat and electricity, glass takes on colours when certain metal oxide s are included in the mix. Most glass breaks easily. limestone (calcium carbonate), with magnesia (magnesium oxide) for sheet glass or alumina (aluminum oxide) for bottle glass. Fused silica is an excellent glass but expensive because of pure silica's very high melting point. Borosilicate glass (e.g., Pyrex) is used for cookware and laboratory glassware because it expands very little when heated. Lead crystal is used for fine tableware. It has a heavy feel because of its lead oxide content and a sparkle due to its high refraction index. Even more specialized glasses include optical, photosensitive, metallic, and fibre-optic . Since glass has no sharp melting point, most types can be shaped while hot and plastic by many techniques, mostly blowing or molding. See also volcanic glass .

II

[c mediumvioletred] (as used in expressions)

glass fibre

Night of Broken Glass

Amelung glass

Baccarat glass

Bohemian glass

cameo glass

cut glass

glass architectural

Glass Carter

Glass Philip

lustred glass

lustered glass

{{link=stained glass">stained glass

Venetian glass

volcanic glass

Waterford glass

Britannica English dictionary.      Английский словарь Британика.