magnesium

Chemical element
Mg
Previous: sodium (Na)
Next: aluminium (Al)

From New Latin magnēsium, from Ancient Greek μαγνησία (magnēsía), after Μαγνησία (Magnēsía, “Magnesia”), a region in Thessaly. Coined by British chemist Humphry Davy, as a modification of his original suggestion, magnium.

• (UK) enPR: măgnē'zēəm, IPA^(key): /ˌmæɡˈniːzi.əm/
• (US) enPR: măgnē'zēəm, IPA^(key): /ˌmæɡˈnizi.əm/; enPR: măgnē'zhəm, IPA^(key): /ˌmæɡˈniʒəm/

• Audio (General American):

  (file)

• Audio (US):

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• Hyphenation: mag‧ne‧si‧um

magnesium (uncountable)

2. The chemical element with an atomic number of 12. It is a light, easily flammable, silvery-white alkaline earth metal.

   Alternative form: Mg

   Hypernyms: alkaline earth metal < metal < substance, material

   • 1999, Chapter 1 "Barrens" Cryptonomicon by Neal Stephenson

     The building looked only like a wall glowing in the firelight, but sometimes a barrage of magnesium blue light made its windowframes jump out of the darkness.

   • 2024 April 21, Laura Paddison, “Can this ocean-based carbon plant help save the world? Some scientists are raising red flags”, in CNN‎^[1]:

     A sample of carbon removed from the ocean in the solid form of calcium carbonate and magnesium hydroxide from UCLA's SeaChange program -- now known as Equatic -- in 2023.

• magnium (obsolete)

• → Welsh: magnesiwm

• artinite
• Birmabright
• bischofite
• brucite
• carnallite
• deweylite
• epsomite
• gymnite
• kieserite
• lansfordite
• nesquehonite
• nigari
• olivine
• sellaite
• talc

• Magnesium on the British Royal Society of Chemistry's online periodic table

• mesangium

Chemical element
Mg
Previous: natrium (Na)
Next: aluminium (Al)

• Audio:

  (file)

magnesium (uncountable)

1. magnesium

Chemical element
Mg
Previous: natrium (Na)
Next: aluminium (Al)

From Ancient Greek μαγνησία (magnēsía) +‎ -ium.

• IPA^(key): /maɡˈne.sium/, [maʊ̯ˈneˀɕɔm]

magnesium n (singular definite magnesiummet, not used in plural form)

1. (chemistry) magnesium

   Synonym: (obsolete) magnium

• “magnesium” in Den Danske Ordbog

Chemical element
Mg
Previous: natrium (Na)
Next: aluminium (Al)

Borrowed from New Latin magnesium. This etymology is incomplete. You can help Wiktionary by elaborating on the origins of this term.

• IPA^(key): /ˌmɑxˈneː.zi.ʏm/

• Audio:

  (file)

• Hyphenation: mag‧ne‧si‧um

magnesium n (uncountable)

1. magnesium

• magnesiumpoeder

Internationalism (see English magnesium), ultimately from New Latin magnēsium.

• IPA^(key): /ˈmɑɡne(ː)s(ː)ium/, [ˈmɑ̝ɡne̞(ː)(s̠)ˌs̠ium]
• Rhymes: -ium
• Syllabification^(key): mag‧ne‧si‧um
• Hyphenation^(key): mag‧ne‧si‧um

magnesium

1. magnesium

• “magnesium”, in Kielitoimiston sanakirja [Dictionary of Contemporary Finnish]‎^[2] (in Finnish) (online dictionary, continuously updated), Kotimaisten kielten keskuksen verkkojulkaisuja 35, Helsinki: Kotimaisten kielten tutkimuskeskus (Institute for the Languages of Finland), 2004–, retrieved 3 July 2023

magnesium (uncountable)

1. magnesium

• (Classical Latin) IPA^(key): [maŋˈneː.si.ũː]
• (modern Italianate Ecclesiastical) IPA^(key): [maɲˈɲɛː.s̬i.um]

Form of magnēsius.

magnēsium

1. inflection of magnēsius:
   1. nominative/accusative/vocative neuter singular
   2. accusative masculine singular

Chemical element
Mg
Previous: natrium (Na)
Next: aluminium (Al)

Substantivization of the neuter form of magnēsius (“of or pertaining to the region of Magnesia”).

magnēsium n (genitive magnēsiī); second declension

1. (New Latin) magnesium (chemical element 12)
   • 1782, D. Laurentius, Gulielmo Huntero, “Nova experimenta Chemica quae ad penitiorem Acidi e Pinguedine eruti cognitionem valere videntur”, in Philosophical Transactions of the Royal Society of London, Part I, page 28:

     Magnesium nitratum nullum converſionem expertum eſt a noſtri acidi admixtione.

     (please add an English translation of this quotation)

Second-declension noun (neuter).

• Magnēsia
• magnēsius

• → English: magnesium
  • → Welsh: magnesiwm
• → French: magnésium (learned)
• → Galician: magnesio (learned)
• → German: Magnesium
• → Italian: magnesio (learned)
• → Luxembourgish: Magnesium
• → Portuguese: magnésio (learned)
• → Romanian: magneziu (learned)
• → Spanish: magnesio (learned)

• IPA^(key): [mɑ˧ˈɲeː˨ʒɔ˧m]

magnesium n

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

Chemical element
Mg
Previous: natrium (Na)
Next: aluminium (Al)

• مݢنيسيوم

From English magnesium, from New Latin magnēsium.

• IPA^(key): /maknesiom/
• Rhymes: -iom, -jom, -om

magnesium (Jawi spelling مݢنيسيوم)

1. magnesium (chemical element)

Borrowed from Norwegian magnesium.

• (Kautokeino) IPA^(key): /ˈmakːneːˌsiuːm/

magnēsium

1. magnesium

Odd, no gradation
Nominative	magnēsium
Genitive	magnēsiuma
	Singular	Plural
Nominative	magnēsium	magnēsiumat
Accusative	magnēsiuma	magnēsiumiid
Genitive	magnēsiuma	magnēsiumiid
Illative	magnēsiumii	magnēsiumiidda
Locative	magnēsiumis	magnēsiumiin
Comitative	magnēsiumiin	magnēsiumiiguin
Essive	magnēsiumin
Possessive forms Singular Dual Plural 1st person magnēsiuman magnēsiumeamẹ magnēsiumeamẹt 2nd person magnēsiumat magnēsiumeattẹ magnēsiumeattẹt 3rd person magnēsiumis magnēsiumeaskkạ magnēsiumeasẹt

• Koponen, Eino, Ruppel, Klaas, Aapala, Kirsti, editors (2002–2008), Álgu database: Etymological database of the Saami languages‎^[3], Helsinki: Research Institute for the Languages of Finland

From magnesia +‎ -ium.

magnesium m or n (definite singular magnesiumen or magnesiumet, uncountable)

1. magnesium, chemical element, symbol Mg

• “magnesium” in The Bokmål Dictionary.
• “magnesium” in Det Norske Akademis ordbok (NAOB).

From magnesia +‎ -ium.

magnesium m or n (definite singular magnesiumen or magnesiumet, uncountable)

1. magnesium, chemical element, symbol Mg

• “magnesium” in The Nynorsk Dictionary.

Chemical element
Mg
Previous: natrium (Na)
Next: aluminium (Al)

• IPA^(key): /maŋˈneːsɪɵm/

• Audio:

  (file)

magnesium n (uncountable)

1. magnesium

• magnesium in Svensk ordbok (SO)
• magnesium in Svenska Akademiens ordlista (SAOL)
• magnesium in Svenska Akademiens ordbok (SAOB)
• Svensk MeSH