Definitions for samarium
səˈmɛər i əmsamar·i·um

Princeton's WordNetRate this definition:0.0 / 0 votes

1. samarium, Sm, atomic number 62noun

   a grey lustrous metallic element of the rare earth group; is used in special alloys; occurs in monazite and bastnasite

WiktionaryRate this definition:0.0 / 0 votes

1. samariumnoun

   A metallic chemical element (symbol Sm) with an atomic number of 62.

2. Etymology: After samarskite, in turn honoring Vasili Samarsky-Bykhovets

WikipediaRate this definition:0.0 / 0 votes

1. Samarium

   Samarium is a chemical element with symbol Sm and atomic number 62. It is a moderately hard silvery metal that slowly oxidizes in air. Being a typical member of the lanthanide series, samarium usually has the oxidation state +3. Compounds of samarium(II) are also known, most notably the monoxide SmO, monochalcogenides SmS, SmSe and SmTe, as well as samarium(II) iodide. The last compound is a common reducing agent in chemical synthesis. Samarium has no significant biological role, and some samarium salts are slightly toxic.Samarium was discovered in 1879 by French chemist Paul-Émile Lecoq de Boisbaudran and named after the mineral samarskite from which it was isolated. The mineral itself was named after a Russian mine official, Colonel Vassili Samarsky-Bykhovets, who thus became the first person to have a chemical element named after him, albeit indirectly. Though classified as a rare-earth element, samarium is the 40th most abundant element in Earth's crust and more common than metals such as tin. Samarium occurs in concentration up to 2.8% in several minerals including cerite, gadolinite, samarskite, monazite and bastnäsite, the last two being the most common commercial sources of the element. These minerals are mostly found in China, the United States, Brazil, India, Sri Lanka and Australia; China is by far the world leader in samarium mining and production. The main commercial use of samarium is in samarium–cobalt magnets, which have permanent magnetization second only to neodymium magnets; however, samarium compounds can withstand significantly higher temperatures, above 700 °C (1,292 °F), without losing their magnetic properties, due to the alloy's higher Curie point. The radioisotope samarium-153 is the active component of the drug samarium (153Sm) lexidronam (Quadramet), which kills cancer cells in lung cancer, prostate cancer, breast cancer and osteosarcoma. Another isotope, samarium-149, is a strong neutron absorber and so is added to control rods of nuclear reactors. It also forms as a decay product during the reactor operation and is one of the important factors considered in the reactor design and operation. Other uses of samarium include catalysis of chemical reactions, radioactive dating and X-ray lasers.

ChatGPTRate this definition:0.0 / 0 votes

1. samarium

   Samarium is a chemical element with the symbol Sm and atomic number 62. It is a hard, silver-white metal that readily oxidizes in air, and is part of the lanthanide series in the periodic table. Although classified as a rare earth element, samarium is the 40th most abundant element in the Earth's crust and is more common than metals such as tin. It is used in various applications including electronics, nuclear reactors, and cancer treatment.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Samariumnoun

   a rare metallic element of doubtful identity

2. Etymology: [NL., fr. E. samarskite.]

WikidataRate this definition:0.0 / 0 votes

1. Samarium

   Samarium is a chemical element with symbol Sm and atomic number 62. It is a moderately hard silvery metal that readily oxidizes in air. Being a typical member of the lanthanide series, samarium usually assumes the oxidation state +3. Compounds of samarium are also known, most notably the monoxide SmO, monochalcogenides SmS, SmSe and SmTe, as well as samarium iodide. The last compound is a common reducing agent in chemical synthesis. Samarium has no significant biological role and is only slightly toxic. Samarium was discovered in 1879 by the French chemist Paul Émile Lecoq de Boisbaudran and named after the mineral samarskite from which it was isolated. The mineral itself was earlier named after a Russian mine official, Colonel Vasili Samarsky-Bykhovets, who thereby became the first person to have a chemical element named after him, albeit indirectly. Although classified as a rare earth element, samarium is the 40th most abundant element in the Earth's crust and is more common than such metals as tin. Samarium occurs with concentration up to 2.8% in several minerals including cerite, gadolinite, samarskite, monazite and bastnäsite, the last two being the most common commercial sources of the element. These minerals are mostly found in China, the United States, Brazil, India, Sri Lanka and Australia; China is by far the world leader in samarium mining and production.153

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

1. Samarium

   Samarium. An element of the rare earth family of metals. It has the atomic symbol Sm, atomic number 62, and atomic weight 150.36. The oxide is used in the control rods of some nuclear reactors.

Matched Categories

1. • Metallic Element

How to pronounce samarium?

1. Alex

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Numerology

1. Chaldean Numerology

   The numerical value of samarium in Chaldean Numerology is: 4

2. Pythagorean Numerology

   The numerical value of samarium in Pythagorean Numerology is: 5

Popularity rank by frequency of use

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=samarium
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Samarium
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Samarium
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/samarium
6. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=samarium