Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun lanthanum

1 sense of lanthanum

Sense 1
lanthanum, La, atomic number 57 -- (a white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth)
       => metallic element, metal -- (any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.)

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