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The chemical element of atomic number 71, a rare silvery-white metal of the lanthanide series.
- ‘In 1907 lutetium was extracted from ytterbia (and identified by the Latin name for Paris, where its isolator Georges Urbain was born).’
- ‘This finding provides support for the ongoing development of more solubilized versions of lutetium texaphyrin as photosensitizers for use in the diagnosis and PDT of cancerous disease.’
- ‘Because lutetium is so expensive (currently, about $75 a gram), it has almost no commercial use.’
- ‘The gadolinium and lutetium exceptions result in a marked increase in radius compared to the slight decrease in metal atom radius for the other elements.’
- ‘At least in the solid state, these latter are bound to the lutetium center as axial ligands.’
Early 20th century: from French lutécium, from Latin Lutetia, the ancient name of Paris, the home of its discoverer.
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The definitions of ‘buddy’ and ‘bro’ in the OED have recently been revised. We explore their history and increase in popularity.