lanthanum

lanthanum

English

Chemical element
La	Previous: barium (Ba)
	Next: cerium (Ce)

Alternative forms

• lantanium (obsolete)
• lanthanium (obsolete)

Etymology

From Ancient Greek λανθάνω (lanthánō, “escape notice”), because it had gone long undetected in mineral ores.

Pronunciation

• enPR: lăn'thənəm, IPA^(key): /ˈlænθənəm/

Noun

lanthanum (countable and uncountable, plural lanthanums)

1. (uncountable) A metallic chemical element (symbol La) with an atomic number of 57.
2. (countable) An atom of this element.

Derived terms

terms derived from lanthanum

• lanthanum carbonate
• lanthanum chloride
• lanthanum glass
• lanthanum nitrate

• lanthanum oxide
• lanthanum oxybromide
• lanthanum sesquioxide

Related terms

terms related to lanthanum

• lanthana
• lanthanate
• lanthanide

• lanthanite
• lanthanoid
• lanthanon

Translations

metallic element

Afrikaans: lantaan (af) Albanian: lantan Arabic: لَنْثَانُوم‎ m (lanṯānum) Armenian: լանթան (hy) (lantʿan) Asturian: lantanu m Basque: lantanoa Belarusian: ланта́н m (lantán) Breton: lantan Bulgarian: ланта́н m (lantán) Catalan: lantani (ca) m Chinese: Mandarin: 鑭 (zh) (làn) Cornish: lanthanum Czech: lanthan (cs) Danish: lanthan (da) Dutch: lanthaan (nl) n, lanthanium (nl) n Esperanto: lantano (eo) Estonian: lantaan (et) Faroese: lantan n Finnish: lantaani (fi) French: lanthane (fr) m Friulian: lantani Galician: lantano (gl) m Georgian: ლანთანი (lantani) German: Lanthan (de) n Greek: λανθάνιο (el) n (lanthánio) Hebrew: לנתן‎ (he) (lantán) Hindi: सुजारला (sujaaralaa) Hungarian: lantán (hu) Icelandic: lanþan n Ido: lantano (io) Irish: lantainam Italian: lantanio (it) m Japanese: ランタン (ja) (rantan) Kashubian: lantón

Kazakh: лантан (kk) (lantan) Korean: 란탄 (ko) (rantan), 란타늄 (rantanyum), 란타넘 (rantaneom) Latin: lanthanum (la) Latvian: lantāns Lithuanian: lantanas (lt) Luxembourgish: Lanthan Macedonian: ланта́н m (lantán) Malay: lantanum Maltese: lantanum Manx: lantanum Mongolian: лантан (mn) (lantan) Norwegian: lantan Polish: lantan (pl) m Portuguese: lantânio (pt) m Romanian: lantan (ro) n Russian: ланта́н (ru) m (lantán) Scottish Gaelic: lantanam Serbo-Croatian: Cyrillic: лантан m Roman: lantan m Slovak: lantán m Slovene: lantan (sl) Spanish: lantano (es) m Swedish: lantan (sv) Tagalog: lantano Tajik: lantan Tamil: மாய்மம் (māymam) Thai: แลนทานัม (lɛɛn-taa-nâm) Turkish: lantan (tr) Ukrainian: ланта́н m (lantán) Uzbek: lantan (uz), лантан (uz) Vietnamese: lantan Volapük: lantanin (vo) Welsh: lanthanwm West Frisian: lanthaan

See also

• Fosrenol
• rare earth

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Latin

Pronunciation

• (Classical) IPA^(key): /ˈlan.tʰa.num/, [ˈɫan.tʰa.nũ]

Noun

lanthanum n (genitive lanthanī); second declension

1. lanthanum

Inflection

Second declension.

Case	Singular	Plural
Nominative	lanthanum	lanthana
Genitive	lanthanī	lanthanōrum
Dative	lanthanō	lanthanīs
Accusative	lanthanum	lanthana
Ablative	lanthanō	lanthanīs
Vocative	lanthanum	lanthana

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Limburgish

Pronunciation

• IPA^(key): [lɑ˧nˈðaː˨nɔ˧m]

Noun

lanthanum n

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

Inflection

Declension of lanthanum

	Root singular	Root plural	Diminutive singular	Diminutive plural
Nominative	lanthanum	lanthana	lanthaneke	lanthanekes
Genitive	lanthanums	lanthana	lanthanekes	lanthanekes
Locative	lanthaneës	lanthaneëser	lanthaneëske	lanthaneëskes
Dative¹	lanthanumme	—	lanthaneke	—
Accusative¹	lanthanum	—	lanthaneke	—
¹Dative and accusative are nowadays obsolete, the nominative is used instead.