different between lanthanum vs lanthanoides

lanthanum

English


Alternative forms

  • lantanium (obsolete)
  • lanthanium (obsolete)

Etymology

From Ancient Greek ??????? (lanthán?, to escape notice) +? -um (a chemical element), because it had gone long undetected in mineral ores.

Pronunciation

  • enPR: l?n'th?n?m, IPA(key): /?læn??n?m/

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.

Synonyms

  • La

Derived terms

Related terms

Translations

See also

  • Fosrenol
  • rare earth

Latin

Pronunciation

  • (Classical) IPA(key): /?lan.t?a.num/, [???än?t??än???]
  • (Ecclesiastical) IPA(key): /?lan.ta.num/, [?l?n?t??num]

Noun

lanthanum n (genitive lanthan?); second declension

  1. lanthanum

Declension

Second-declension noun (neuter).


Limburgish

Pronunciation

  • IPA(key): [l??n?ða??n??m]

Noun

lanthanum n

  1. (uncountable) lanthanum
  2. A part of lanthanum

Inflection

lanthanum From the web:

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lanthanoides

lanthanoides From the web:

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  • lanthanides and actinides
  • what does lanthanides mean
  • what is lanthanide contraction what are its consequences
  • what are lanthanides used for
  • what is lanthanides in periodic table
  • lanthanide contraction
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