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Word of the Day Tuesday, June 9, 2026

lanthanum

/lænˈθænəm/ noun · British & US
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What does lanthanum mean?

noun

A soft silvery-white radioactive metallic element of the lanthanide series, used in the production of phosphors and in nuclear reactors. It is also used in the manufacture of glass and ceramics.

Example

"The scientist studied the properties of lanthanum in the laboratory."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for lanthanum

Rhymes with lanthanum

Etymologically related