pitchblende
/ˈpɪtʃblɛnd
/noun [mass noun]
A form of the mineral uraninite occurring in brown or black pitch-like masses and containing radium.The first discovery of pitchblende in the United States was associated with gold ores at the Wood mine in Gilpin County....
- The most common ore of the element is pitchblende, although it is also present in other minerals, such as uraninite, carnotite, uranophane, and coffinite.
- The story of the Curie's four-year struggle to purify, purify, and purify over again the components of pitchblende has now been told in popular novels, plays, and motion pictures.
Origin
Late 18th century: from German Pechblende, from Pech 'pitch' + Blende (see blende).
- Polisario
- Polisario Front
- Poli Sci
- Poli. Sci.
- polish
- polishable
- Polish-American
- Polish Corridor
- Polish drafts
- Polish draughts
- polished
- polished cotton
- polishedness
- polisher
- polishing jack
- polishing mill
- polishing snake
- polishment
- Polishness
- Polish notation
- Polish plait
- polish remover
- polish something off
- Polish wheat
- polisman