noun Etymology: New Latin, from Latin Thule Date: 1879 a soft silvery metallic element of the rare-earth group — see element table

New Collegiate Dictionary. 2001.

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  • Thulium — (pronEng|ˈθjuːliəm) is a chemical element that has the symbol Tm and atomic number 69. A lanthanide element, thulium is the least abundant of the rare earths. It is an easily workable metal with a bright silvery gray luster and can be cut by a… …   Wikipedia

  • Thulium — Erbium ← Thulium → Ytterbium …   Wikipédia en Français

  • thulium — [ tyljɔm ] n. m. • 1904; lat. sc., nom donné par le chimiste suéd. Clève, du lat. Thule, gr. Thoulê, nom de la Scandinavie ♦ Chim. Élément atomique (Tm; no at. 69; m. at. 168,93), métal blanc argenté, du groupe des terres rares, utilisé dans la… …   Encyclopédie Universelle

  • Thulium — Thu li*um, n. [NL. See {Thule}.] (Chem.) A rare metallic element of uncertain properties and identity, said to have been found in the mineral gadolinite. [1913 Webster] [1913 Webster] …   The Collaborative International Dictionary of English

  • Thulium — Thu, Atomgew. 169,65, chemisches Element, in einigen norwegischen seltenen Mineralien vorkommend, so im Gadolinit, auch im Samarskit von Nordkarolina. Bujard …   Lexikon der gesamten Technik

  • thulium — Symbol: Tm Atomic number: 69 Atomic weight: 168.934 Soft grey metallic element that belongs to the lanthanoids. One natural isotope exists, Tm 169, and seventeen artificial isotopes have been produced. No known uses for the element. Discovered in …   Elements of periodic system

  • thulium — [tho͞o′lē əm, thyo͞o′lē əm] n. [ModL: so named (1886) by L. de Boisbaudran (see GADOLINIUM) < THULIA (from which it was isolated by Cleve in 1879) + IUM] a bright, silvery chemical element, one of the rare earth elements: symbol, Tm; at. no.,… …   English World dictionary

  • Thulium — Eigenschaften …   Deutsch Wikipedia

  • thulium — /thooh lee euhm/, n. Chem. a rare earth metallic element found in the minerals euxenite, gadolinite, etc. Symbol: Tm; at. wt.: 168.934; at. no.: 69; sp. gr.: 9.32. [1875 80; < NL; see THULE, IUM] * * * ▪ chemical element  (Tm), chemical element,… …   Universalium

  • Thulium — Thu|li|um 〈n.; s; unz.; chem. 〉 chem. Element, Metall aus der Gruppe der Lanthanoide, Ordnungszahl 69 [nach dem nord. Sagenland Thule] * * * Thu|li|um [nach Thule, einem sagenhaften Land im fernen Norden; ↑ ium (1)], das; s; Symbol: Tm: chem.… …   Universal-Lexikon

  • Thulium — tulis statusas T sritis fizika atitikmenys: angl. thulium vok. Thulium, n rus. тулий, m pranc. thulium, m …   Fizikos terminų žodynas

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