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thulium

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noun thu·li·um \ˈthü-lē-əm, ˈthyü-\

Definition of thulium

  1. :  a soft silvery metallic element of the rare-earth group — see element table



Origin and Etymology of thulium

New Latin, from Latin Thule


First Known Use: 1879


Medical Dictionary

thulium

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noun thu·li·um \ˈth(y)ü-lē-əm\

Medical Definition of thulium

  1. :  a trivalent metallic element of the rare-earth group—symbol Tm; see element table




Learn More about thulium

  1. Medical Dictionary: Definition of thulium Britannica.com: Encyclopedia article about thulium


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