pitchblende
noun Etymology: part translation of German Pechblende, from Pech pitch + Blende blende Date: 1770 a brown to black mineral that consists of massive uraninite, has a distinctive luster, contains radium, and is the chief ore-mineral source of uranium

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • pitchblende — [pich′blend΄] n. [calque of Ger pechblende < pech (< L pix), PITCH1 + blende,BLENDE] a brown to black, radioactive, massive form of uraninite: pitchblende is the chief ore of uranium and radium …   English World dictionary

  • Pitchblende — Pitch blende , n. [1st pitch + blende.] (Min.) A pitch black mineral consisting chiefly of the oxide of uranium; uraninite. See {Uraninite}. [1913 Webster] …   The Collaborative International Dictionary of English

  • pitchblende — ► NOUN ▪ a form of the mineral uraninite occurring in brown or black pitch like masses and containing radium. ORIGIN German Pechblende, from Pech pitch + Blende, denoting a zinc ore …   English terms dictionary

  • pitchblende — /pich blend /, n. Mineral. a massive variety of uraninite, occurring in black pitchlike masses: a major ore of uranium and radium. [1760 70; half trans., half adoption of G Pechblende. See PITCH2, BLENDE] * * * Amorphous, dense, black, pitchy… …   Universalium

  • pitchblende — noun A variety of the mineral uraninite …   Wiktionary

  • pitchblende — A mineral of pitchlike appearance, chiefly uranium dioxide, the main source of uranium and elements, such as radium, produced as a result of the radioactive breakdown of that element. SYN: uraninite. * * * pitch·blende pich .blend n …   Medical dictionary

  • pitchblende — pitch|blende [ˈpıtʃblend] n [U] a dark shiny substance dug from the earth, from which ↑uranium and ↑radium are obtained …   Dictionary of contemporary English

  • pitchblende — pitch·blende || pɪtʃblend n. black mineral that contains uranium and radium …   English contemporary dictionary

  • pitchblende — [ pɪtʃblɛnd] noun a form of the mineral uraninite occurring in brown or black pitch like masses and containing radium. Origin C18: from Ger. Pechblende, from Pech pitch + Blende (see blende) …   English new terms dictionary

  • pitchblende — noun (U) a dark shiny substance dug from the earth, from which uranium and radium are obtained …   Longman dictionary of contemporary English

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