A nonessential trace element that has caused nephrotoxicity (kidney injury) and death when used chronically by humans, even at recommended levels of use. The U.S. Food & Drug Administration (the FDA) warns that products containing germanium have been "labeled for drug use (e.g., with claims that they are intended for use in the diagnosis, cure, mitigation, treatment, or prevention of diseases such as AIDS or cancer), although there are no approved new drug applications or current investigational new drug applications on file. Germanium-containing products also have been offered for entry as food products such as dietary supplements." Germanium has been offered for sale under a variety of names including Germanium Sesquioxide, GE-132, GE-OXY-132, Vitamin O, Pro-Oxygen, Nutrigel 132, Immune Multiple, and Germax. The FDA recommends that such products containing germanium for human usage be labeled "poisonous and deleterious." (There are legitimate uses for germanium in the semiconductor industry.)
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A metallic element, atomic no. 32, atomic wt. 72.61. [L. Germania, Germany]

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ger·ma·ni·um (.)jər-'mā-nē-əm n a grayish white hard brittle metalloid element that resembles silicon and is used as a semiconductor symbol Ge see ELEMENT (table)

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ger·ma·ni·um (Ge) (jər-maґne-əm) a rare element, having the appearance of a bluish gray metalloid, atomic number 32, atomic weight 72.59.

Medical dictionary. 2011.

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  • Germanium — (pronEng|dʒɚˈmeɪniəm) is a chemical element with the symbol Ge and atomic number 32. It is a lustrous, hard, silver white metalloid in the carbon group, chemically similar to its group neighbors tin and silicon. Germanium has five naturally… …   Wikipedia

  • Germanium — Gallium ← Germanium → Arsenic Si …   Wikipédia en Français

  • GERMANIUM — De Germania , Allemagne Symbole chimique: Ge Numéro atomique: 32 Masse atomique: 72,59 Point de fusion: 937,4 0C Point d’ébullition: 2 830 0C Densité (à 20 0C): 5,32. Semi métal argenté qui a été découvert par Clemens Winkler dans l’argyrodite… …   Encyclopédie Universelle

  • Germanium — (Ge, Atomgew. 72,3, spez. Gew. 5,5), sehr seltenes, 1886 von Cl. Winkler in einem bei Freiberg gefundenen Minerale Argyrodit GeS2(Ag2S)3 entdecktes grauweißes, sprödes Metall. Schmelzpunkt 900°; an der Luft beständig, bei Glühhitze unter Bildung… …   Lexikon der gesamten Technik

  • Germanium — Ger*ma ni*um, n. [NL., fr. L. Germania Germany.] (Chem.) A rare element, discovered in 1885 in a silver ore (argyrodite) at Freiberg. It is a brittle, silver white metal, chemically intermediate between the metals and nonmetals, resembles tin,… …   The Collaborative International Dictionary of English

  • Germanĭum — Ge, Metall, findet sich mit Schwefel und Schwefelsilber verbunden im Argyrodit, auch im Canfieldit, im Samarskit, Euxenit, in Spuren im Tantalit, Fergusonit, Niobit, Gadolinit etc. Es ist grauweiß, kristallisiert regulär, ist sehr spröde,… …   Meyers Großes Konversations-Lexikon

  • Germanium — Germanĭum (chem. Zeichen Ge), sehr seltenes, dem Zinn ähnliches Metall; Atomgewicht 71,93, spez. Gewicht 5,5. Grauweiße, spröde Kristalle, von Winkler 1886 im Argyrodit entdeckt. Existenz und Eigenschaften von Mendelejew nach dem periodischen… …   Kleines Konversations-Lexikon

  • germanium — GERMÁNIUM s.n. v. germaniu. Trimis de LauraGellner, 13.09.2007. Sursa: DN …   Dicționar Român

  • germanium — Symbol: Ge Atomic number: 32 Atomic weight: 72.59 Lustrous hard metalloid element, belongs to group 14 of the periodic table. Forms a large number of organometallic compounds. Predicted by Mendeleev in 1871, it was actually found in 1886 by… …   Elements of periodic system

  • germanium — [jər mā′nē əm] n. [ModL < L Germania, Germany] a grayish white, nonmetallic chemical element of the carbon family used in semiconductors, transistors, infrared equipment, etc.: symbol, Ge; at. no., 32: see the periodic table of elements in the …   English World dictionary

  • Germanium — Eigenschaften …   Deutsch Wikipedia

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