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thulium

Pronunciation: /ˈθ(j)uːlɪəm/
Definition of thulium

noun

[mass noun]
  • the chemical element of atomic number 69, a soft silvery-white metal of the lanthanide series. (Symbol: Tm)

Origin:

late 19th century: modern Latin, from Latin Thule (see Thule (sense 1)), from Greek Thoulē, of unknown origin

thulium in other Oxford dictionaries

Definition of thulium in the US English dictionary
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