technetium
noun Etymology: New Latin, from Greek technētos artificial, from technasthai to devise by art, from technē Date: circa 1946 a radioactive metallic element obtained especially from nuclear fuel as a product of uranium fission and used as a diagnostic radiopharmaceutical — see element table

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • Technetium — Technétium Technétium Molyb …   Wikipédia en Français

  • Technétium — Molybdène ← Technétium → Ruthénium Mn …   Wikipédia en Français

  • TECHNÉTIUM — Du grec tekhnétos , artificiel. Symbole chimique: Tc Numéro atomique: 43 Masse atomique: 98,9 g Point de fusion: 2 172 0C Point d’ébullition: 4 877 0C Densité (à 20 0C): 11,5 Métal du groupe du manganèse produit artificiellement pour la première… …   Encyclopédie Universelle

  • technetium — Symbol: Tc Atomic number: 43 Atomic weight: (98) Radioactive metallic transition element. Can be detected in some stars and the fission products of uranium. First made by Perrier and Segre by bombarding molybdenum with deutrons, giving them Tc 97 …   Elements of periodic system

  • technetium — [tek nē′shē əm, tek nē′shəm] n. [ModL < Gr technētos, artificial (< technasthai, to contrive by art < technē: see TECHNIC) + IUM: so named (1947) by E. G. Segré (1905 89), It American physicist, and C. Perrier, It physicist, who… …   English World dictionary

  • Technetium — molybdenum ← technetium → ruthenium Mn ↑ Tc ↓ Re …   Wikipedia

  • Technetium — Eigenschaften …   Deutsch Wikipedia

  • technetium — /tek nee shee euhm, sheuhm/, n. Chem. an element of the manganese family, not found in nature, but obtained in the fission of uranium or by the bombardment of molybdenum. Symbol: Tc; at. wt.: 99; at. no.: 43; sp. gr.: 11.5. [1945 50; < Gk… …   Universalium

  • Technetium — Tc (Symbol) * * * Tech|ne|ti|um 〈n.; s; unz.; chem. 〉 künstlich hergestelltes, radioaktives chemisches Element, Ordnungszahl 43 [<grch. technetos „künstlich“] * * * Tech|ne|ti|um [griech. techne̅tós = künstlich gemacht (téchne̅ = Kunst,… …   Universal-Lexikon

  • technetium — technecis statusas T sritis chemija apibrėžtis Cheminis elementas. simbolis( iai) Tc atitikmenys: lot. technetium angl. marsurium; technetium rus. технеций …   Chemijos terminų aiškinamasis žodynas

  • technetium — technecis statusas T sritis fizika atitikmenys: angl. masurium; technetium vok. Technetikum, n rus. технеций, m pranc. technétium, m …   Fizikos terminų žodynas

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