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Tachylyte :: Tachylyte (n.) A vitreous form of basalt; -- so called because decomposable by acids and readily fusible.

Resin :: Resin (n.) Any one of a class of yellowish brown solid inflammable substances, of vegetable origin, which are nonconductors of electricity, have a vitreous fracture, and are soluble in ether, alcohol, and essential oils, but not in water; specif., pine resin (see Rosin)..

Hyalospongia :: Hyalospongia (n. pl.) An order of vitreous sponges, having glassy six-rayed, siliceous spicules; -- called also Hexactinellinae..

Feldspath :: Feldspath (n.) A name given to a group of minerals, closely related in crystalline form, and all silicates of alumina with either potash, soda, lime, or, in one case, baryta. They occur in crystals and crystalline masses, vitreous in luster, and breaking rather easily in two directions at right angles to each other, or nearly so. The colors are usually white or nearly white, flesh-red, bluish, or greenish..

Smalt :: Smalt (v. t.) A deep blue pigment or coloring material used in various arts. It is a vitreous substance made of cobalt, potash, and calcined quartz fused, and reduced to a powder..

Frett :: Frett (n.) A vitreous compound, used by potters in glazing, consisting of lime, silica, borax, lead, and soda..

Melanterite :: Melanterite (n.) A hydrous sulphate of iron of a green color and vitreous luster; iron vitriol.

Paste :: Paste (n.) A highly refractive vitreous composition, variously colored, used in making imitations of precious stones or gems. See Strass..

Laumontite :: Laumontite (n.) A mineral, of a white color and vitreous luster. It is a hydrous silicate of alumina and lime. Exposed to the air, it loses water, becomes opaque, and crumbles..

Reclination :: Reclination (n.) The act or process of removing a cataract, by applying the needle to its anterior surface, and depressing it into the vitreous humor in such a way that the front surface of the cataract becomes the upper one and its back surface the lower one..

Devitrify :: Devitrify (v. t.) To deprive of glasslike character; to take away vitreous luster and transparency from.

Iolite :: Iolite (n.) A silicate of alumina, iron, and magnesia, having a bright blue color and vitreous luster; cordierite. It is remarkable for its dichroism, and is also called dichroite..

Tyrolite :: Tyrolite (n.) A translucent mineral of a green color and pearly or vitreous luster. It is a hydrous arseniate of copper.

Pecten :: Pecten (n.) A vascular pigmented membrane projecting into the vitreous humor within the globe of the eye in birds, and in many reptiles and fishes; -- also called marsupium..

Hyaloid :: Hyaloid (a.) Resembling glass; vitriform; transparent; hyaline; as, the hyaloid membrane, a very delicate membrane inclosing the vitreous humor of the eye..

Glazing :: Glazing (n.) The act or art of setting glass; the art of covering with a vitreous or glasslike substance, or of polishing or rendering glossy..

Vitreous :: Vitreous (a.) Of or pertaining to glass; derived from glass; as, vitreous electricity..

Vitreousness :: Vitreousness (n.) The quality or state of being vitreous.

Gadolinite :: Gadolinite (n.) A mineral of a nearly black color and vitreous luster, and consisting principally of the silicates of yttrium, cerium, and iron..

Depolishing :: Depolishing (n.) The process of removing the vitreous glaze from porcelain, leaving the dull luster of the surface of ivory porcelain..

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