Definition of dysprosium in English:
 dysprosium
noun dɪsˈprəʊzɪəmdɪsˈproʊziəm
mass nounThe chemical element of atomic number 66, a soft silvery-white metal of the lanthanide series.
 Example sentencesExamples
-  This overview on my blog tells you more about this ‘magic’ metal, the Terfenol, which is a combination of terbium and dysprosium.
 -  Ytterite was eventually to yield eight other new elements in addition to dysprosium.
 -  With this, we can produce energetic dysprosium, atomic mass 162.5, heavy enough for nuclear reactions.
 -  Each segment contains small amounts of ions of relatively rare metals, such as dysprosium, thulium, and cerium, which fluoresce in different colors.
 -  The relative difficulty in identifying certain elements has given birth to such names as lanthanum, krypton and dysprosium.
 
Origin
  
Late 19th century: from Greek dusprositos 'hard to get at' + -ium.
   Definition of dysprosium in US English:
 dysprosium
noundɪsˈproʊziəmdisˈprōzēəm
The chemical element of atomic number 66, a soft silvery-white metal of the lanthanide series.
 Example sentencesExamples
-  With this, we can produce energetic dysprosium, atomic mass 162.5, heavy enough for nuclear reactions.
 -  The relative difficulty in identifying certain elements has given birth to such names as lanthanum, krypton and dysprosium.
 -  This overview on my blog tells you more about this ‘magic’ metal, the Terfenol, which is a combination of terbium and dysprosium.
 -  Each segment contains small amounts of ions of relatively rare metals, such as dysprosium, thulium, and cerium, which fluoresce in different colors.
 -  Ytterite was eventually to yield eight other new elements in addition to dysprosium.
 
Origin
  
Late 19th century: from Greek dusprositos ‘hard to get at’ + -ium.