Definition of glass

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Glass (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..

Lern More About Glass

Mat :: Mat (n.) An ornamental border made of paper, pasterboard, metal, etc., put under the glass which covers a framed picture; as, the mat of a daguerreotype..
Axinite :: Axinite (n.) A borosilicate of alumina, iron, and lime, commonly found in glassy, brown crystals with acute edges..
Glass-snail :: Glass-snail (n.) A small, transparent, land snail, of the genus Vitrina..
Etching :: Etching (n.) The act, art, or practice of engraving by means of acid which eats away lines or surfaces left unprotected in metal, glass, or the like. See Etch, v. t..
Crystal :: Crystal (n.) A species of glass, more perfect in its composition and manufacture than common glass, and often cut into ornamental forms. See Flint glass..
Glass :: Glass (v. t.) A looking-glass; a mirror.
Vitric :: Vitric (a.) Having the nature and qualities of glass; glasslike; -- distinguished from ceramic.
Kelp :: Kelp (n.) The calcined ashes of seaweed, -- formerly much used in the manufacture of glass, now used in the manufacture of iodine..
Image :: Image (n.) The figure or picture of any object formed at the focus of a lens or mirror, by rays of light from the several points of the object symmetrically refracted or reflected to corresponding points in such focus; this may be received on a screen, a photographic plate, or the retina of the eye, and viewed directly by the eye, or with an eyeglass, as in the telescope and microscope; the likeness of an object formed by reflection; as, to see one's image in a mirror..
Hyalonema :: Hyalonema (n.) A genus of hexactinelline sponges, having a long stem composed of very long, slender, transparent, siliceous fibres twisted together like the strands of a color. The stem of the Japanese species (H. Sieboldii), called glass-rope, has long been in use as an ornament. See Glass-rope..
Optic :: Optic (a.) An eyeglass.
Sandglass :: Sandglass (n.) An instrument for measuring time by the running of sand. See Hourglass.
Semivitrified :: Semivitrified (a.) Half or imperfectly vitrified; partially converted into glass.
Gelatine :: Gelatine (n.) Animal jelly; glutinous material obtained from animal tissues by prolonged boiling. Specifically (Physiol. Chem.), a nitrogeneous colloid, not existing as such in the animal body, but formed by the hydrating action of boiling water on the collagen of various kinds of connective tissue (as tendons, bones, ligaments, etc.). Its distinguishing character is that of dissolving in hot water, and forming a jelly on cooling. It is an important ingredient of calf's-foot jelly, isinglass, gl
Hyalography :: Hyalography (n.) Art of writing or engraving on glass.
Glare :: Glare (n.) A smooth, bright, glassy surface; as, a glare of ice..
Obsidian :: Obsidian (n.) A kind of glass produced by volcanoes. It is usually of a black color, and opaque, except in thin splinters..
Bar :: Bar (n.) A slender strip of wood which divides and supports the glass of a window; a sash bar.
Vinery :: Vinery (n.) A structure, usually inclosed with glass, for rearing and protecting vines; a grapery..
Harmonica :: Harmonica (n.) A musical instrument, consisting of a series of hemispherical glasses which, by touching the edges with the dampened finger, give forth the tones..
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