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(thu-li-um) 3 syllables

Definition

noun. a silvery metal that is part of the lanthanide series. it is used in various applications like lasers and nuclear reactors.

Example Sentence

Thulium is a chemical element with the symbol Tm and atomic number 69.

More Example Sentences

The scientists studied thulium for its properties.

Synonyms

metal; element; lanthanide

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thulium
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