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).
- as who should say
- aswim
- aswirl
- ASX
- as yet
- asylee
- asylum
- asylum seeker
- asymmetric
- asymmetrical
- asymmetrical conflict
- asymmetrically
- asymmetrical warfare
- asymmetric bars
- asymmetric conflict
- asymmetric warfare
- asymmetry
- asymptomatic
- asymptote
- asymptotic
- asymptotically
- asynchronous
- asynchronously
- asynchronous transfer mode
- asynchrony