lanthanum
/ˈlænθənəm/
lanthanum noun: a chemical element (symbol La) with an atomic number of 57: a soft, ductile, silvery-white metal that tarnishes slowly when exposed to air.
Noun
lanthanum (countable and uncountable, plural lanthanums)
- A chemical element (symbol La) with an atomic number of 57: a soft, ductile, silvery-white metal that tarnishes slowly when exposed to air.
- An atom of this element.
lanthanum meaning in Hindi, Tamil, Tagalog and Arabic
lanthanum in Hindi
- metallic element
- सुजारला sujārlā
lanthanum in Tamil
- metallic element
- மாய்மம் māymam
lanthanum in Tagalog
- metallic element
- lantano
lanthanum in Arabic
- metallic element
- لَانْثَانُوم lānṯānūm, لَانْتَانُوم lāntānūm, لَنْثَنُوم lanṯanūm, لَنْتَنُوم lantanūm
More languagesFewer languages
- lanthanum in Malay
- lantanum
- lanthanum in Thai
- แลนทานัม lɛɛn-taa-nâm
- lanthanum in Vietnamese
- lantan
Synonyms of lanthanum
Forms of lanthanum
| plural | lanthanums |
|---|---|
| alternative form | lantanium |
| alternative form | lanthanium |
Origin of lanthanum
From Ancient Greek λανθάνω (lanthánō, “to escape notice”) + -um (“a chemical element”), because it had gone long undetected in mineral ores.
Words formed from lanthanum
- dilanthanum
- lanthanian
- lanthanum carbonate
- lanthanum chloride
- lanthanum glass
- lanthanum nitrate
- lanthanum oxide
- lanthanum oxybromide
- lanthanum sesquioxide
- organolanthanum
- radiolanthanum
Questions about lanthanum
- What does lanthanum mean?
- Lanthanum means a chemical element (symbol La) with an atomic number of 57: a soft, ductile, silvery-white metal that tarnishes slowly when exposed to air.
- What is lanthanum in Hindi?
- Lanthanum in Hindi is सुजारला (sujārlā). See Lanthanum meaning in Hindi.
- What part of speech is lanthanum?
- Lanthanum is a noun.
- How do you pronounce lanthanum?
- Lanthanum is pronounced /ˈlænθənəm/.
- What is the plural of lanthanum?
- The plural of lanthanum is lanthanums.
Words near lanthanum in the dictionary
Source and license
Adapted from Wiktionary: 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.
Last updated:
Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Vininn126-lanthanum.wav, LL-Q1860 (eng)-Tesco250-lanthanum.wav.
Cite this entry: “lanthanum.” Word.ws, https://word.ws/lanthanum. Based on Wiktionary, CC BY-SA 4.0.