dysprosium Syllabification: (dys·pro·si·um)Pronunciation: /disˈprōzēəm/Definition of dysprosium noun the chemical element of atomic number 66, a soft silvery-white metal of the lanthanide series. (Symbol: Dy)Origin: late 19th century: from Greek dusprositos 'hard to get at' + -iumdysprosium in other Oxford dictionaries Definition of dysprosium in the British & World English dictionary
