- a hard, brittle, noncrystalline, more or less transparent substance produced by fusion, usually consisting of mutually dissolved silica and silicates that also contain soda and lime, as in the ordinary variety used for windows and bottles.
- any artificial or natural substance having similar properties and composition, as fused borax, obsidian, or the like.
- something made of such a substance, as a windowpane.
- a tumbler or other comparatively tall, handleless drinking container.
- glasses, Also called eyeglasses. a device to compensate for defective vision or to protect the eyes from light, dust, and the like, consisting usually of two glass or plastic lenses set in a frame that includes a nosepiece for resting on the bridge of the nose and two sidepieces extending over or around the ears (usually used with pair of).Compare goggle(def 1a), pince-nez, spectacle(def 3).
- a mirror.
- things made of glass, collectively; glassware: They used to collect old glass.
- a glassful.
- a lens, especially one used as a magnifying glass.
- a spyglass.
- made of glass: a glass tray.
- furnished or fitted with panes of glass; glazed.
verb (used with object)
- to fit with panes of glass.
- cover with or encase in glass.
- to coat or cover with fiberglass: to glass the hull of a boat.
- to scan with a spyglass or other optical instrument.
- to reflect: Trees glassed themselves in the lake.
- a hard brittle transparent or translucent noncrystalline solid, consisting of metal silicates or similar compounds. It is made from a fused mixture of oxides, such as lime, silicon dioxide, etc, and is used for making windows, mirrors, bottles, etc
- (as modifier)a glass bottle Related adjectives: vitreous, vitric
- any compound that has solidified from a molten state into a noncrystalline form
- something made of glass, esp a drinking vessel, a barometer, or a mirror
- Also called: glassful the amount contained in a drinking glass
- glassware collectively
- See volcanic glass
- See fibreglass
- to cover with, enclose in, or fit with glass
- informal to hit (someone) in the face with a glass or a bottle
- Philip. born 1937, US composer noted for his minimalist style: his works include Music in Fifths (1970), Akhnaten (1984), The Voyage (1992), and Monsters of Grace (1998); his film music includes scores for Kundun (1998), The Truman Show (1999), and The Hours (2002)
late 14c., “to fit with glass;” 1570s, “to cover with glass,” from glass (n.). Related: Glassed; glassing.
Old English glæs “glass, a glass vessel,” from West Germanic *glasam (cf. Old Saxon glas, Middle Dutch and Dutch glas, German Glas, Old Norse gler “glass, looking glass,” Danish glar), from PIE *ghel- “to shine, glitter” (cf. Latin glaber “smooth, bald,” Old Church Slavonic gladuku, Lithuanian glodus “smooth”), with derivatives referring to colors and bright materials, a word that is the root of widespread words for gray, blue, green, and yellow (cf. Old English glær “amber,” Latin glaesum “amber,” Old Irish glass “green, blue, gray,” Welsh glas “blue;” see Chloe). Sense of “drinking glass” is early 13c.
The glass slipper in “Cinderella” is perhaps an error by Charles Perrault, translating in 1697, mistaking Old French voir “ermine, fur” for verre “glass.” In other versions of the tale it is a fur slipper. The proverb about people in glass houses throwing stones is attested by 1779, but earlier forms go back to 17c.:
Who hath glass-windows of his own must take heed how he throws stones at his house. … He that hath a body made of glass must not throw stones at another. [John Ray, “Handbook of Proverbs,” 1670]
- Any of a large class of materials with highly variable mechanical and optical properties that solidify from the molten state without crystallization, are typically made by silicates fusing with boric oxide, aluminum oxide, or phosphorus pentoxide, are generally hard, brittle, and transparent or translucent, and are considered to be supercooled liquids rather than true solids.
- Something usually made of glass, such as a window, mirror, or drinking vessel.
- glasses A pair of lenses mounted in a light frame, used to correct faulty vision or protect the eyes.spectacles
- A device, such as a monocle or spyglass, containing a lens or lenses and used as an aid to vision.
- A usually transparent or translucent material that has no crystalline structure yet behaves like a solid. Common glass is generally composed of a silicate (such as silicon oxide, or quartz) combined with an alkali and sometimes other substances. The glass used in windows and windshields, called soda glass, is made by melting a silicate with sodium carbonate (soda) and calcium oxide (lime). Other types of glass are made by adding other chemical compounds. Adding boron oxide causes some silicon atoms to be replaced by boron atoms, resulting in a tougher glass that remains solid at high temperatures, used for cooking utensils and scientific apparatuses. Glass used for decorative purposes often has iron in it to alter its optical properties.
In addition to the idioms beginning with glass
- glass ceiling
- glass is half full, the
- people who live in glass houses