| GBD | gallbladder disease; gender behavior disorder; glass blower's disease; granulomatous bowel disease |
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| GDW | glass-distilled water |
| GF | gastric fistula; gastric fluid; germ-free; glass factor; glomerular filtration; gluten-free; grandfa... |
| Tg | glass transition temperature |
| BG | Bioactive glass |
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| CPG | Controlled Pore Glass |
| GI | Glass ionomer |
| GIC | Glass ionomer cement |
| RMGI | Resin modified glass ionomer |
| glass | 1. A hard, brittle, translucent, and commonly transparent substance, white or coloured, 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. Glass is variously coloured by the metallic oxides; thus, manganese colours 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. 2. <chemistry> Any substance having a peculiar glassy appearance, and a conchoidal fracture, and usually produced by fusion. 3. Anything made of glass. Especially: A looking-glass; a mirror. 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. "She would not live The running of one glass." (Shak) A drinking vessel; a tumbler; a goblet; hence, the contents of such a vessel; especially; spirituous liquors; as, he took a glass at dinner. An optical glass; a lens; a spyglass; in the plural, spectacles; as, a pair of glasses; he wears glasses. A weatherglass; a barometer. Glass is much used adjectively or in combination; as, glass maker, or glassmaker; glass making or glassmaking; glass blower or glassblower, etc. Bohemian glass, Cut glass, etc. See 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 blower, one whose occupation is to blow and fashion glass. Glass blowing, the art of shaping glass, when reduced by heat to a viscid state, by inflating it through a tube. Glass cloth, a woven fabric formed of glass fibres. 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. "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. One who cuts sheets of glass into sizes for window panes, ets. One who shapes the surface of glass by grinding and polishing. A tool, usually with a diamond at the point, for cutting glass. Glass cutting. The act or process of dividing glass, as sheets of glass into panes with a diamond. 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 colours 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 coloured 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 colour from the materials for glass. Glass staining, the art or practice of colouring glass in its whole substance, or, in the case of certain colours, 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. <chemistry> Soluble glass See Soluble glass, above. Window glass, glass in panes suitable for windows. Origin: OE. Glas, gles, AS. Glaes; akin to D, G, Dan, & Sw. Glas, Icel. Glas, gler, Dan. Glar; cf. AS. Glaer amber, L. Glaesum. Cf. Glare, Glaze. Source: Websters Dictionary (01 Mar 1998) |
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| glass bead steriliser | A steriliser for endodontic equipment; the heat is transmitted to the instruments, absorbent points, or cotton pellets by means of glass beads. (05 Mar 2000) |
| glass body | A circular body of extreme transparency except for a crescentic punctate substance on one edge which contains haemoglobin. The body is much larger than a red blood cell, but is thought possibly to be a degenerated red blood cell swollen by imbibition; it has been found in malaria and in convalescence from typhoid fever; the transparent portion is called the glass body. (05 Mar 2000) |
| glass electrode | A thin-walled glass bulb containing a standard buffer solution, quinhydrone, and a platinum wire; when immersed in an unknown solution, a potential difference develops that varies with the pH of the unknown solution; this difference can be made to give the pH; used in pH meters. (05 Mar 2000) |
| glass factor | <chemical> Stable blood coagulation factor activated by contact with the subendothelial surface of an injured vessel. Along with prekallikrein, it serves as the contact factor that initiates the intrinsic pathway of blood coagulation. Kallikrein activates factor xii to xiia. Deficiency of factor xii, also called the hageman trait, leads to increased incidence of thromboembolic disease. Chemical name: Blood-coagulation factor XII (12 Dec 1998) |
| glass ionomer cement | A dental cement produced by mixing a powder prepared from a calcium aluminosilicate glass with an aqueous solution of polyacrylic acid. Origin: ion + -mer (05 Mar 2000) |
| glass ionomer cements | A polymer obtained by reacting polyacrylic acid with a special anion-leachable glass (alumino-silicate). The resulting cement is more durable and tougher than others in that the materials comprising the polymer backbone do not leach out. (12 Dec 1998) |
| glass rays | Those formed by cathode ray's striking the wall of an X-ray tube. (05 Mar 2000) |
| glass-crab | <zoology> The larval state (Phyllosoma) of the genus Palinurus and allied genera. It is remarkable for its strange outlines, thinness, and transparency. See Phyllosoma. Source: Websters Dictionary (01 Mar 1998) |
| glass-rope | <zoology> 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 fibres, twisted together. Source: Websters Dictionary (01 Mar 1998) |
| glass-snail | <zoology> A small, transparent, land snail, of the genus Vitrina. Source: Websters Dictionary (01 Mar 1998) |
| glass-snake | <zoology> 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. Source: Websters Dictionary (01 Mar 1998) |
| glass-sponge | <zoology> A siliceous sponge, of the genus Hyalonema, and allied genera; so called from their glassy fibres or spicules. Synonym: vitreous sponge. See Glass-rope, and Euplectella. Source: Websters Dictionary (01 Mar 1998) |
| Glasser's disease | <disease> A fibrinous polyserositis, polyarthritis, and meningitis of pigs caused by the bacterium Haemophilus parasuis. (05 Mar 2000) |
| glasses | Synonym: spectacles. 2. Lenses for correcting refractive errors in the eyes. (05 Mar 2000) |
| vita glass | A specially prepared glass that is transparent to ultraviolet rays of the spectrum. (05 Mar 2000) |
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| ground-glass pattern | Radiographic or CT appearance of hazy opacity which fails to obscure pulmonary vascular markings. (05 Mar 2000) |
| water glass | <chemistry> See Soluble glass, under Glass. Source: Websters Dictionary (01 Mar 1998) |
| Wood's glass | A glass containing nickel oxide, used in Wood's lamp. (05 Mar 2000) |
| cover glass | A thin glass disk or plate covering an object examined under the microscope. Synonym: coverslip. (05 Mar 2000) |
| Crookes' glass | A spectacle lens combined with metallic oxides to absorb ultraviolet or infrared rays. (05 Mar 2000) |
| crown glass | A compound of lime, potash, alumina, and silica; commonly used in lenses; has a low dispersion (52.2) relative to index of refraction (1.523). (05 Mar 2000) |
| cupping glass | A glass vessel, from which the air has been exhausted by heat or a special suction apparatus, formerly applied to the skin in order to draw blood to the surface. See: cupping, cup. Synonym: cup. (05 Mar 2000) |
| half-glass spectacles | Spectacles, used for reading, in which the upper portion of the lenses are removed. Synonym: clerical spectacles, pantoscopic spectacles, pulpit spectacles. (05 Mar 2000) |
| soluble glass | A silicate of potassium or sodium, soluble in hot water but solid at ordinary temperatures; used for fixed dressings. Synonym: water glass. (05 Mar 2000) |
| quartz glass | A transparent, colourless crystal, made by fusing pure quartz sand, which transmits ultraviolet light. (05 Mar 2000) |
| object glass | 1. <psychology> Perceptible to the external senses. 2. <ophthalmology> The lens or system of lenses in a microscope (or telescope) that is nearest to the object under examination. Origin: L. Objectivus (18 Nov 1997) |
| opera-glass hand | A deformity of the hand seen in chronic absorptive arthritis, the fingers and wrists being shortened and the covering skin wrinkled into transverse folds; the phalanges appear to be retracted into one another like an opera glass or miniature telescope. Synonym: main en lorgnette. (05 Mar 2000) |
| three-glass test | The bladder is emptied by passing urine into a series of 3-ounce test tubes, and the contents of the first and the last are examined; the first tube contains the washings from the anterior urethra, the second, material from the bladder, and the last, material from the posterior urethra, prostate, and seminal vesicles. Synonym: Valentine's test. (05 Mar 2000) |
| two-glass test | The urine, in a case of gonorrhoea, is passed into two glasses; if the gonococci and gonorrhoeal threads are found only in the first glass the probability is that the process is limited to the anterior urethra. Synonym: two-glass test. (05 Mar 2000) |
Synonyms :
Synonyms : Glass Polyalkenoate Cements, Glass-Ionomer Cement, Cement, Glass-Ionomer, Cements, Glass Ionomer, Cements, Glass Polyalkenoate, Cements, Polyalkenoate, Glass Ionomer Cement
| glass eye |
prosthesis consisting of an artificial eye made of glass
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| glass |
a brittle transparent solid with irregular atomic structure a container for holding liquids while drinking the quantity a glass will hold furnish with glass; "glass the windows" field glass: a small refracting telescope scan (game in the forest) with binoculars enclose with glass; "glass in a porch" methamphetamine: an amphetamine derivative (trade name Methedrine) used in the form of a crystalline hydrochloride; used as a stimulant to the nervous system and as an appetite suppressant put in a glass container looking glass: a mirror; usually a ladies' dressing mirror glassware collectively; "She collected old glass" glaze: become glassy or take on a glass-like appearance; "Her eyes glaze over when she is bored"
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| glasses |
spectacles: optical instrument consisting of a pair of lenses for correcting defective vision
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| glassy |
resembling glass in smoothness and shininess and slickness; "the glassy surface of the lake"; "the pavement was...glassy with water"- Willa Cather (used of eyes) lacking liveliness; "empty eyes"; "a glassy stare"; "his eyes were glazed over with boredom" (of ceramics) having the surface made shiny and nonporous by fusing a vitreous solution to it; "glazed pottery"; "glassy porcelain"; "hard vitreous china used for plumbing fixtures"
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| glass electrode |
Glass electrodeis a potentiometric sensor made from glass of a specific composition. Almost all commercialy electrodes related to ion-selective sensors with electrode function for single charged ions, like H+, Na+, Ag+. Only few chalcogenide glass electrodes have electrode function for double-charged ions, like Pb2+, Cd+ and some other. ...
Ãâó: en.wikipedia.org/wiki/Glass_electrode
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| glass | a small refracting telescope |
|---|---|
| glass | a glass container for holding liquids while drinking |
| glass | glassware collectively |
| glass | a mirror |
| glass | the quantity a glass will hold |
| glass | a brittle transparent solid with irregular atomic structure |
| glass | become glassy |
| glass | put in a glass container |
| glass | enclose with glass |
| glass | scan with binoculars, as for game in the forest |
| glass | furnish with glass, as of a window |
| glass | a tool for cutting glass |
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