[ Its name is supposed to be derived from the similarity of the effects it gives to those of a picture by Claude Lorrain (often written Lorraine). ] A slightly convex mirror, commonly of black glass, used as a toy for viewing the reflected landscape. [ 1913 Webster ]

n. A small sandglass, running about three minutes, for marking time in boiling eggs; also, a small glass for holding an egg, at table. [ 1913 Webster ]

n. 1. A lens of glass worn in front of the eye to assist vision; -- usually used in the plural, referring to a pair of lenses fixed together in a frame, and worn resting on the bridge of the nose, to improve the vision. A single eyeglass in a frame is called a monocle. [ 1913 Webster +PJC ]

2. Eyepiece of a telescope, microscope, etc. [ 1913 Webster ]

3. The retina. [ Poetic ] [ 1913 Webster ]

4. A glass eyecup. See Eyecup. [ 1913 Webster ]

n. pl. a pair of lenses fixed together in a frame, used for correcting defective vision. Also called a pair of eyeglasses. See also eyeglass{ 1 }.
Syn. -- spectacles, specs, glasses. [ WordNet 1.5 +PJC ]

n. a material made of fine glass fibers woven into a fabric-like form, and used in applications requiring heat resistance; it is also embedded in resins to make a pliable but strong composite material used as the main component of fishing rods and boat hulls, and replacing the sheet metal in some automobile bodies. [ Also spelled fibreglass, mostly British in usage. ] [ WordNet 1.5 ]

n. Same as fiberglass. [ mostly British usage ] [ WordNet 1.5 ]

(Chem.) A soft, heavy, brilliant glass, consisting essentially of a silicate of lead and potassium. It is used for tableware, and for optical instruments, as prisms, its density giving a high degree of dispersive power; -- so called, because formerly the silica was obtained from pulverized flints. Called also crystal glass. Cf. Glass. [ 1913 Webster ]

☞ The concave or diverging half on an achromatic lens is usually made of flint glass. [ 1913 Webster ]

n. [ Ir. galloglach. Cf. Gillie. ] A heavy-armed foot soldier from Ireland and the Western Isles in the time of Edward &unr_; Shak. [ 1913 Webster ]

n. [ OE. glas, gles, AS. glæs; akin to D., G., Dan., & Sw. glas, Icel. glas, gler, Dan. glar; cf. AS. glær amber, L. glaesum. Cf. Glare, n., Glaze, v. t. ] [ 1913 Webster ]

1. 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. [ 1913 Webster ]

☞ Glass is variously colored by the metallic oxides; thus, manganese colors it violet; copper (cuprous), red, or (cupric) green; cobalt, blue; uranium, yellowish green or canary yellow; iron, green or brown; gold, purple or red; tin, opaque white; chromium, emerald green; antimony, yellow. [ 1913 Webster ]

2. (Chem.) Any substance having a peculiar glassy appearance, and a conchoidal fracture, and usually produced by fusion. [ 1913 Webster ]

3. Anything made of glass. Especially: (a) A looking-glass; a mirror. (b) 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. [ 1913 Webster ]

She would not live
The running of one glass. Shak.

(c) A drinking vessel; a tumbler; a goblet; hence, the contents of such a vessel; especially; spirituous liquors; as, he took a glass at dinner. (d) An optical glass; a lens; a spyglass; -- in the plural, spectacles; as, a pair of glasses; he wears glasses. (e) A weatherglass; a barometer. [ 1913 Webster ]

☞ Glass is much used adjectively or in combination; as, glass maker, or glassmaker; glass making or glassmaking; glass blower or glassblower, etc. [ 1913 Webster ]

Bohemian glass,
Cut glass, etc. See under Bohemian, Cut, etc. --
Crown glass, a variety of glass, used for making the finest plate or window glass, and consisting essentially of silicate of soda or potash and lime, with no admixture of lead; the convex half of an achromatic lens is composed of crown glass; -- so called from a crownlike shape given it in the process of blowing. --
Crystal glass, or
Flint glass. See Flint glass, in the Vocabulary. --
Cylinder glass, sheet glass made by blowing the glass in the form of a cylinder which is then split longitudinally, opened out, and flattened. --
Glass of antimony, a vitreous oxide of antimony mixed with sulphide. --
Glass cloth, a woven fabric formed of glass fibers. --
Glass coach, a coach superior to a hackney-coach, hired for the day, or any short period, as a private carriage; -- so called because originally private carriages alone had glass windows. [ Eng. ] Smart. [ 1913 Webster ] Glass coaches are [ allowed in English parks from which ordinary hacks are excluded ], meaning by this term, which is never used in America, hired carriages that do not go on stands. J. F. Cooper. --
Glass cutter. (a) One who cuts sheets of glass into sizes for window panes, ets. (b) One who shapes the surface of glass by grinding and polishing. (c) A tool, usually with a diamond at the point, for cutting glass. --
Glass cutting. (a) The act or process of dividing glass, as sheets of glass into panes with a diamond. (b) The act or process of shaping the surface of glass by appylying it to revolving wheels, upon which sand, emery, and, afterwards, polishing powder, are applied; especially of glass which is shaped into facets, tooth ornaments, and the like. Glass having ornamental scrolls, etc., cut upon it, is said to be engraved. --
Glass metal, the fused material for making glass. --
Glass painting, the art or process of producing decorative effects in glass by painting it with enamel colors and combining the pieces together with slender sash bars of lead or other metal. In common parlance, glass painting and glass staining (see Glass staining, below) are used indifferently for all colored decorative work in windows, and the like. --
Glass paper, paper faced with pulvirezed glass, and used for abrasive purposes. --
Glass silk, fine threads of glass, wound, when in fusion, on rapidly rotating heated cylinders. --
Glass silvering, the process of transforming plate glass into mirrors by coating it with a reflecting surface, a deposit of silver, or a mercury amalgam. --
Glass soap, or
Glassmaker's soap, the black oxide of manganese or other substances used by glass makers to take away color from the materials for glass. --
Glass staining, the art or practice of coloring glass in its whole substance, or, in the case of certain colors, in a superficial film only; also, decorative work in glass. Cf. Glass painting. --
Glass tears. See Rupert's drop. --
Glass works, an establishment where glass is made. --
Heavy glass, a heavy optical glass, consisting essentially of a borosilicate of potash. --
Millefiore glass. See Millefiore. --
Plate glass, a fine kind of glass, cast in thick plates, and flattened by heavy rollers, -- used for mirrors and the best windows. --
Pressed glass, glass articles formed in molds by pressure when hot. --
Soluble glass (Chem.), a silicate of sodium or potassium, found in commerce as a white, glassy mass, a stony powder, or dissolved as a viscous, sirupy liquid; -- used for rendering fabrics incombustible, for hardening artificial stone, etc.; -- called also water glass. --
Spun glass, glass drawn into a thread while liquid. --
Toughened glass,
Tempered glass, glass finely tempered or annealed, by a peculiar method of sudden cooling by plunging while hot into oil, melted wax, or paraffine, etc.; -- called also, from the name of the inventor of the process, Bastie glass. --
Water glass. (Chem.) See Soluble glass, above. --
Window glass, glass in panes suitable for windows. [ 1913 Webster ]

v. t. [ imp. & p. p. Glassed p. pr. & vb. n. Glassing. ] 1. To reflect, as in a mirror; to mirror; -- used reflexively. [ 1913 Webster ]

Happy to glass themselves in such a mirror. Motley. [ 1913 Webster ]

Where the Almighty's form glasses itself in tempests. Byron. [ 1913 Webster ]

2. To case in glass. [ R. ] Shak. [ 1913 Webster ]

3. To cover or furnish with glass; to glaze. Boyle. [ 1913 Webster ]

4. To smooth or polish anything, as leater, by rubbing it with a glass burnisher. [ 1913 Webster ]

n. 1. someone skilled creating objects such as bottles, vases, or other decorative or practical items from molten glass, especially one whose occupation is to make objects by blowing and shaping hot glass in its viscous semiliquid state. [ WordNet 1.5 +PJC ]

n. The art and process of creating glass objects, by shaping glass when reduced by heat to a viscid state, using various manipulations with the hands, especially by inflating it by blowing through a tube. The process is used to manufacture a wide variety of useful and ornamental objects. The manufacture of simple glass objects has been automated, but complex glass objects are still made by the traditional hand processes. [ PJC ]

n. (Zool.) The larval state (Phyllosoma) of the genus Palinurus and allied genera. It is remarkable for its strange outlines, thinness, and transparency. See Phyllosoma. [ 1913 Webster ]

n. 1. one who cuts or grinds designs on glass. [ WordNet 1.5 ]

2. one who cuts flat glass to size.
Syn. -- glassworker, glazier, glazer. [ WordNet 1.5 ]

a. Glassy; glazed. [ Obs. ] [ 1913 Webster ]

And pursues the dice with glassen eyes. B. Jonson. [ 1913 Webster ]

n. pl. Same as eyeglasses. See eyeglass{ 1 }.
Syn. -- spectacles, specs, eyeglasses. [ WordNet 1.5 ]

n. 1. (Zool.) A fish of the great lakes; the wall-eyed pike. [ 1913 Webster ]

2. (Far.) A species of blindness in horses in which the eye is bright and the pupil dilated; a sort of amaurosis. Youatt. [ 1913 Webster ]

a. Mirror-faced; reflecting the sentiments of another. [ R. ] “The glass-faced flatterer.” Shak. [ 1913 Webster ]

n.; pl. Glassfuls The contents of a glass; as much of anything as a glass will hold. [ 1913 Webster ]

a. Glassy; shining like glass. [ Obs. ] “Minerva's glassful shield.” Marston. [ 1913 Webster ]

a. Given to viewing one's self in a glass or mirror; finical. [ Poetic ] Shak. [ 1913 Webster ]

n. A house where glass is made; a commercial house that deals in glassware. [ 1913 Webster ]

adv. So as to resemble glass. [ 1913 Webster ]

n. The quality of being glassy. [ 1913 Webster ]

n. A member of a Scottish sect, founded in the 18th century by John Glass, a minister of the Established Church of Scotland, who taught that justifying faith is “no more than a simple assent to the divine testimone passively recived by the understanding.” The English and American adherents of this faith are called Sandemanians, after Robert Sandeman, the son-in-law and disciple of Glass.

or , n. One who makes, or manufactures, glass. -- Glass" mak`ing, or Glass"mak`ing, n. [ 1913 Webster ]

n. (Zool.) A remarkable vitreous sponge, of the genus Hyalonema, first brought from Japan. It has a long stem, consisting of a bundle of long and large, glassy, siliceous fibers, twisted together. [ 1913 Webster ]

n. (Zool.) A small, transparent, land snail, of the genus Vitrina. [ 1913 Webster ]

n. (Zool.) A long, footless lizard (Ophiosaurus ventralis), of the Southern United States; -- so called from its fragility, the tail easily breaking into small pieces. It grows to the length of three feet. The name is applied also to similar species found in the Old World. [ 1913 Webster ]

n. (Zool.) A siliceous sponge, of the genus Hyalonema, and allied genera; -- so called from their glassy fibers or spicules; -- called also vitreous sponge. See Glass-rope, and Euplectella. [ 1913 Webster ]

n. Ware, or articles collectively, made of glass. [ 1913 Webster ]

n. Manufacture of glass; articles or ornamentation made of glass. [ 1913 Webster ]

n. one who cuts flat glass to size.
Syn. -- glasscutter, glazier, glazer. [ WordNet 1.5 ]

n. a place where glass is made. [ WordNet 1.5 ]

n. (Bot.) A seashore plant of the Spinach family (Salicornia herbacea), with succulent jointed stems; also, a prickly plant of the same family (Salsola Kali), both formerly burned for the sake of the ashes, which yield soda for making glass and soap. [ 1913 Webster ]

a. 1. Made of glass; vitreous; as, a glassy substance. Bacon. [ 1913 Webster ]

2. Resembling glass in its properties, as in smoothness, brittleness, or transparency; as, a glassy stream; a glassy surface; the glassy deep. [ 1913 Webster ]

3. Dull; wanting life or fire; lackluster; -- said of the eyes. “In his glassy eye.” Byron. [ 1913 Webster ]

Glassy feldspar (Min.), a variety of orthoclase; sanidine. [ 1913 Webster ]

adj. 1. fitted or covered with glass; as, a glassed wall. Opposite of unglazed. [ WordNet 1.5 ]

n. An instrument for measuring time, especially the interval of an hour. It consists of a glass vessel having two compartments, from the uppermost of which a quantity of sand, water, or mercury occupies an hour in running through a small aperture unto the lower. [ 1913 Webster ]

☞ A similar instrument measuring any other interval of time takes its name from the interval measured; as, a half-hour glass, a half-minute glass. A three-minute glass is sometimes called an egg-glass, from being used to time the boiling of eggs. [ 1913 Webster ]

n. [ Prob. corrupted fr. D. huizenblas (akin to G. hausenblase), lit., bladder of the huso, or large sturgeon; huizen sturgeon + blas bladder. Cf. Bladder, Blast a gust of wind. ] [ 1913 Webster ]

1. A semitransparent, whitish, and very pure form of gelatin, chiefly prepared from the sounds or air bladders of various species of sturgeons (as the Acipenser huso) found in the rivers of Western Russia. It used for making jellies, as a clarifier, etc. Cheaper forms of gelatin are not unfrequently so called. Called also fish glue. [ 1913 Webster ]

2. (Min.) A popular name for mica, especially when in thin sheets. [ 1913 Webster ]

n. (Bot.) See Venus's looking-glass, under Venus. [ 1913 Webster ]

n. A mirror made of glass on which has been placed a backing of some reflecting substance, as quicksilver. [ 1913 Webster ]

There is none so homely but loves a looking-glass. South. [ 1913 Webster ]

n. A single convex lens which magnifies the apparent dimensions of objects seen through it, and is used to produce an enlarged image.
Syn. -- hand glass. [ WordNet 1.5 ]

[ It. mille thousand + fiore flower. ] Slender rods or tubes of colored glass fused together and embedded in clear glass; -- used for paperweights and other small articles. [ 1913 Webster ]

[ From Muscovy, the old name of Russia: cf. F. verre de Moscovie. ] Mica; muscovite. See Mica. [ 1913 Webster ]

. Glass with one side smooth and the other side formed into sharp-edged ridges so as to reflect the light that passes through, used at windows to throw the light into the interior. [ Webster 1913 Suppl. ]

n. An instrument for measuring time by the running of sand. See Hourglass. [ 1913 Webster ]

n. A small telescope for viewing distant terrestrial objects. [ 1913 Webster ]

n. A glass vessel, usually cylindrical, filled with a solution which is sensitive to atmospheric changes, indicating by a clouded appearance, rain, snow, etc., and by clearness, fair weather. [ 1913 Webster ]

n.; pl. Sunglasses A convex lens of glass for producing heat by converging the sun's rays into a focus. “Lighting a cigar with a sunglass.” Hawthorne. [ 1913 Webster ]

1. (Chem.) See Soluble glass, under Glass. [ 1913 Webster ]

2. A clepsydra. [ Webster 1913 Suppl. ]

3. An instrument consisting of an open box or tube with a glass bottom, used for examining objects in the water, as upon the sea bottom in shallow places. [ Webster 1913 Suppl. ]

4. A water gauge for a steam boiler. [ Webster 1913 Suppl. ]