Word.ws English Dictionary

lanthanides

lanthanides is the plural of lanthanide.

Meaning of lanthanide

Noun

lanthanide (plural lanthanides)

  1. Any of the 15 rare earth elements from lanthanum to lutetium in the periodic table; because their outermost orbitals are not filled, they have very similar chemistry; below them are the actinides.
  2. Any of the 14 rare earth elements from lanthanum to ytterbium (lutetium is excluded by some authors as it is a d-block rather than an f-block element).
  3. (dated) Any of the 14 rare earth elements from cerium to lutetium (lanthanum having been excluded because it was thought to be a d-block element in the past).

Questions about lanthanides

What is lanthanides the plural of?
Lanthanides is the plural of lanthanide.

Words near lanthanides in the dictionary

  1. lanthanate
  2. lanthanian
  3. lanthanide
  4. lanthanide contraction
  5. lanthanide contractions
  6. lanthanides
  7. lanthanite
  8. lanthanites
  9. lanthanium
  10. lanthanoid
  11. lanthanoids

Source and license

Adapted from Wiktionary: lanthanides (page history and authors); lanthanide (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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