Definitions for holmium
ˈhoʊl mi əmholmi·um

Princeton's WordNetRate this definition:0.0 / 0 votes

1. holmium, Ho, atomic number 67noun

   a trivalent metallic element of the rare earth group; occurs together with yttrium; forms highly magnetic compounds

GCIDERate this definition:2.0 / 1 vote

1. Holmiumnoun

   A rare element of atomic number 67 said to be contained in gadolinite. Chemical symbol Ho. Atomic weight 164.93. Valence +3. It was detected by spectral absorption bands in 1878 by the Delafontaine and Soret, who called it "Element X". Later the Swedish chemist Cleve independently discovered it in erbia, and named it after his native city Stockholm. The first preparation of pure Holmia, the yellow oxide, was not made until 1911. HCP61 -- Hol"mic (#), a.

WiktionaryRate this definition:0.0 / 0 votes

1. holmiumnoun

   a metallic chemical element (symbol Ho) with an atomic number of 67.

2. Etymology: Holmia (Stockholm), the hometown of Per Teodor Cleve, one of the discoverers of holmium.

WikipediaRate this definition:0.0 / 0 votes

1. Holmium

   Holmium is a chemical element with the symbol Ho and atomic number 67. It is a rare-earth element and the eleventh member of the lanthanide series. It is a relatively soft, silvery, fairly corrosion-resistant and malleable metal. Like a lot of other lanthanides, holmium is too reactive to be found in native form, as pure holmium slowly forms a yellowish oxide coating when exposed to air. When isolated, holmium is relatively stable in dry air at room temperature. However, it reacts with water and corrodes readily, and also burns in air when heated. In nature, holmium occurs together with the other rare-earth metals (like thulium). It is a relatively rare lanthanide, making up 1.4 parts per million of the Earth's crust, an abundance similar to tungsten. Holmium was discovered through isolation by Swedish chemist Per Theodor Cleve and independently by Jacques-Louis Soret and Marc Delafontaine, who observed it spectroscopically in 1878. Its oxide was first isolated from rare-earth ores by Cleve in 1878. The element's name comes from Holmia, the Latin name for the city of Stockholm.Like many other lanthanides, holmium is found in the minerals monazite and gadolinite and is usually commercially extracted from monazite using ion-exchange techniques. Its compounds in nature and in nearly all of its laboratory chemistry are trivalently oxidized, containing Ho(III) ions. Trivalent holmium ions have fluorescent properties similar to many other rare-earth ions (while yielding their own set of unique emission light lines), and thus are used in the same way as some other rare earths in certain laser and glass-colorant applications. Holmium has the highest magnetic permeability and magnetic saturation of any element and is thus used for the polepieces of the strongest static magnets. Because holmium strongly absorbs neutrons, it is also used as a burnable poison in nuclear reactors.

ChatGPTRate this definition:0.0 / 0 votes

1. holmium

   Holmium is a chemical element with the symbol Ho and atomic number 67. It is part of the lanthanide series and is relatively soft and malleable. Holmium is found in various minerals including monazite and gadolinite. It's has the highest magnetic strength of any naturally-occurring element and it has some uses in scientific and medical equipment, like nuclear control rods and MRI scanners. It is silver in color and is not found freely in nature but is instead found in various ores. It was discovered by Swiss chemists Marc Delafontaine and Jacques-Louis Soret in 1878.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Holmiumnoun

   a rare element said to be contained in gadolinite

2. Etymology: [NL., from Stockholm.]

WikidataRate this definition:0.0 / 0 votes

1. Holmium

   Holmium is a chemical element with the symbol Ho and atomic number 67. Part of the lanthanide series, holmium is a rare earth element. Holmium was discovered by Swedish chemist Per Theodor Cleve. Its oxide was first isolated from rare earth ores in 1878 and the element was named after the city of Stockholm. Elemental holmium is a relatively soft and malleable silvery-white metal. It is too reactive to be found uncombined in nature, but when isolated, is relatively stable in dry air at room temperature. However, it reacts with water and rusts readily, and will also burn in air when heated. Holmium is found in the minerals monazite and gadolinite, and is usually commercially extracted from monazite using ion exchange techniques. Its compounds in nature, and in nearly all of its laboratory chemistry, are trivalently oxidized, containing Ho ions. Trivalent holmium ions have fluorescent properties similar to many other rare earth ions, and holmium ions are thus used in the same way as some other rare earths in certain laser and glass colorant applications. Holmium has the highest magnetic strength of any element and therefore is used for the polepieces of the strongest static magnets. Because holmium strongly absorbs neutrons, it is also used in nuclear control rods.

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

1. Holmium

   Holmium. An element of the rare earth family of metals. It has the atomic symbol Ho, atomic number 67, and atomic weight 164.93.

Matched Categories

1. • Metallic Element

How to pronounce holmium?

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Numerology

1. Chaldean Numerology

   The numerical value of holmium in Chaldean Numerology is: 3

2. Pythagorean Numerology

   The numerical value of holmium in Pythagorean Numerology is: 1

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References

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