American Heritage® Dictionary of the English Language, Fourth Edition
- n. A soft, silvery-gray metallic rare-earth element, used in x-ray and color television tubes. Atomic number 65; atomic weight 158.925; melting point 1,356°C; boiling point 3,123°C; specific gravity 8.229; valence 3, 4. See Table at element.
Century Dictionary and Cyclopedia
- n. A rare element, not yet isolated, occurring in the samarskite of North Carolina and certain other rare minerals, associated with erbium and yttrium.
- n. a metallic chemical element (symbol Tb) with an atomic number of 65
GNU Webster's 1913
- n. (Chem.) A rare metallic element, found in certain minerals, as gadolinite and samarskite, with other rare earths such as ytterbium. Symbol Tb. Atomic number 65. Atomic weight 158.925.
- n. a metallic element of the rare earth group; used in lasers; occurs in apatite and monazite and xenotime and ytterbite
- After Ytterby, Sweden. (Wiktionary)
- After Ytterby, a town in Sweden. (American Heritage® Dictionary of the English Language, Fourth Edition)
“Indeed, some international prices haven't fallen at all, in particular those that are known as heavy rare earths, like terbium, which is used in advanced lasers and optics.”
“The rare-earths blasted out of rocks here feed more than 77 per cent of global demand for elements such as terbium, which power low-energy lightbulbs; neodymium, which powers wind turbines; and lanthanum, which powers the batteries of hybrid cars such as the Toyota Prius.”
“The insides of energy-efficient compact fluorescent light bulbs are coated with tiny amounts of two such elements, terbium and europium.”
“Everything from fluorescent light bulbs to laptop and iPhone screens relies on small but critical amounts of europium to generate a pleasant red color and terbium to make green.”
“Amygdala explains why you might want to care about dysprosium, terbium, and neodymium.”
“Apple Inc. and Blackberry maker Research In Motion Ltd. use terbium to make their phones smaller, lighter and faster.”
“China accounts for 95 percent of global production and about 60 percent of consumption of rare metals, including dysprosium, terbium, thulium, lutetium and yttrium, according to the U.S.”
“Europium and terbium are used in electronic displays like LEDs.”
“Neodymium, dysprosium and terbium are members of a class of elements called “rare earth metals”.”
“China has a rough monopoly on lanthanum, terbium, neodymium and dysprosium.”
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A list of chemical elements
The inner or western division of the Jewish tabernacle, as distinguished from the outer part, called the holy place. The holy of holies was inclosed on three sides by the walls of the tabernacle, w...
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