Word.ws English Dictionary

lantanium

lantanium is the obsolete form of lanthanum.

Meaning of lanthanum

Noun

lanthanum (countable and uncountable, plural lanthanums)

  1. (uncountable) A chemical element (symbol La) with an atomic number of 57: a soft, ductile, silvery-white metal that tarnishes slowly when exposed to air.
  2. (countable) An atom of this element.

Questions about lantanium

What is lantanium the obsolete form of?
Lantanium is the obsolete form of lanthanum.

Words near lantanium in the dictionary

  1. Lantag
  2. lantaka
  3. lantakas
  4. lantana
  5. lantanas
  6. lantanium
  7. lantanoid
  8. lantanum
  9. lantanurate
  10. lantanuric acid
  11. Lantao

Source and license

Adapted from Wiktionary: lantanium (page history and authors); lanthanum (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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