Definitions for lanthanum
ˈlæn θə nəmlan·thanum

Princeton's WordNetRate this definition:0.0 / 0 votes

1. lanthanum, La, atomic number 57noun

   a white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth

WiktionaryRate this definition:0.0 / 0 votes

1. lanthanumnoun

   A metallic chemical element (symbol La) with an atomic number of 57.

2. Etymology: From λανθάνω, because it had gone long undetected in mineral ores.

ChatGPTRate this definition:0.0 / 0 votes

1. lanthanum

   Lanthanum is a soft, ductile, silvery-white, malleable chemical element with the symbol La and atomic number 57. It is part of the lanthanide series on the periodic table. It is often used to make certain types of glass, flints for lighters, and in other scientific applications. Lanthanum usually has a low to moderate level of toxicity and is a highly reactive element.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Lanthanumnoun

   a rare element of the group of the earth metals, allied to aluminium. It occurs in certain rare minerals, as cerite, gadolinite, orthite, etc., and was so named from the difficulty of separating it from cerium, didymium, and other rare elements with which it is usually associated. Atomic weight 138.5. Symbol La

2. Etymology: [NL., fr. Gr. lanqa`nein to lie hid, to be concealed.]

WikidataRate this definition:0.0 / 0 votes

1. Lanthanum

   Lanthanum is a chemical element with the symbol La and atomic number 57. Lanthanum is a silvery white metallic element that belongs to group 3 of the periodic table and is the first element of the lanthanide series. It is found in some rare-earth minerals, usually in combination with cerium and other rare earth elements. Lanthanum is a malleable, ductile, and soft metal that oxidizes rapidly when exposed to air. It is produced from the minerals monazite and bastnäsite using a complex multistage extraction process. Lanthanum compounds have numerous applications as catalysts, additives in glass, carbon lighting for studio lighting and projection, ignition elements in lighters and torches, electron cathodes, scintillators, and others. Lanthanum carbonate was approved as a medication against renal failure.

Chambers 20th Century DictionaryRate this definition:0.0 / 0 votes

1. Lanthanum

   lan′tha-num, n. a metal discovered in 1839 in cerite, a hydrated silicate of cerium.—Also Lan′thānium. [Gr. lanthanein, to conceal.]

U.S. National Library of MedicineRate this definition:0.0 / 0 votes

1. Lanthanum

   Lanthanum. The prototypical element in the rare earth family of metals. It has the atomic symbol La, atomic number 57, and atomic weight 138.91. Lanthanide ion is used in experimental biology as a calcium antagonist; lanthanum oxide improves the optical properties of glass.

Matched Categories

1. • Metallic Element

How to pronounce lanthanum?

1. Alex

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How to say lanthanum in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of lanthanum in Chaldean Numerology is: 7

2. Pythagorean Numerology

   The numerical value of lanthanum in Pythagorean Numerology is: 5

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References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=lanthanum
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Lanthanum
3. ^ ChatGPT
   https://chat.openai.com
4. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/lanthanum
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=lanthanum
6. ^ Chambers 20th Century Dictionary
   https://www.gutenberg.org/files/37683/37683-h/37683-h.htm#:~:text=lanthanum