Definition of lutetium noun from the Oxford Advanced Learner's Dictionary



BrE BrE//luːˈtiːʃiəm//
, also BrE//luːˈtiːsiəm//
; NAmE NAmE//luːˈtiːʃiəm//
[uncountable] (symbol Lu)
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a chemical element. Lutetium is a rare silver-white metal used in the nuclear industry. Word Originearly 20th cent.: from French lutécium, from Latin Lutetia, the ancient name of Paris, the home of its discoverer.
See the Oxford Advanced American Dictionary entry: lutetium