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单词 lutetium
释义

Definition of lutetium in English:

lutetium

(also lutecium)
noun luːˈtiːʃɪəmluːˈtiːsɪəmluˈtiʃ(i)əm
mass noun
  • The chemical element of atomic number 71, a rare silvery-white metal of the lanthanide series.

    (化学元素)镥(符号: Lu

    Example sentencesExamples
    • 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.
    • Because lutetium is so expensive (currently, about $75 a gram), it has almost no commercial use.
    • 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.
    • At least in the solid state, these latter are bound to the lutetium center as axial ligands.

Origin

Early 20th century: from French lutécium, from Latin Lutetia, the ancient name of Paris, the home of its discoverer.

Rhymes

technetium

Definition of lutetium in US English:

lutetium

nounlo͞oˈtēSH(ē)əmluˈtiʃ(i)əm
  • The chemical element of atomic number 71, a rare silvery-white metal of the lanthanide series.

    (化学元素)镥(符号: Lu

    Example sentencesExamples
    • 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.
    • 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.
    • At least in the solid state, these latter are bound to the lutetium center as axial ligands.
    • Because lutetium is so expensive (currently, about $75 a gram), it has almost no commercial use.

Origin

Early 20th century: from French lutécium, from Latin Lutetia, the ancient name of Paris, the home of its discoverer.

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更新时间:2025/6/18 9:57:34