Standard Lemma guide

magnesium

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • UK: măgnē'zēəm
  • UK: /ˌmæɡˈniːzi.əm/
  • US: măgnē'zēəm
  • US: /ˌmæɡˈnizi.əm/
  • US: măgnē'zhəm
  • US: /ˌmæɡˈniʒəm/
  • General-American: Recorded audio is listed in the source snapshot.
  • US: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: M AE0 G N IY1 Z IY0 AH0 M Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

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

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

Examples

  • 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.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: alkaline earth metal, metal, substance, material

2

noun

Meaning 2

a light silver-white ductile bivalent metallic element; in pure form it burns with brilliant white flame; occurs naturally only in combination (as in magnesite and dolomite and carnallite and spinel and olivine)

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Mg, atomic number 12

Antonyms: none provided

Broader terms: metallic element, metal

History

Etymology

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.

Across languages

Translations

110 source translations are retained for this English entry.

  • Afrikaans: magnesium — chemical element
  • Albanian: magneziumi — chemical element
  • Arabic: مَغْنِيسِيُوم (maḡnīsiyūm) — chemical element
  • Armenian: մագնեզիում (magnezium) — chemical element
  • Asturian: magnesiu — chemical element
  • Azerbaijani: maqnezium — chemical element
  • Basque: magnesioa — chemical element
  • Belarusian: магній (mahnij) — chemical element
  • Bengali: ম্যাগনেশিয়াম (mêgneśiẏam) — chemical element
  • Breton: magneziom — chemical element
  • Breton: magnesiom — chemical element
  • Bulgarian: магне́зий (magnézij) — chemical element
  • Catalan: magnesi — chemical element
  • Cebuano: magnesium — chemical element
  • Chinese Mandarin: 鎂 /镁 (měi) — chemical element
  • Cornish: magnesiom — chemical element
  • Corsican: magnesiu — chemical element
  • Czech: hořčík — chemical element
  • Danish: magnesium — chemical element
  • Dhivehi: މެގްނީޒިއަމް (megnīziam̊) — chemical element
  • Dutch: magnesium — chemical element
  • Esperanto: magnezio — chemical element
  • Estonian: magneesium — chemical element
  • Faroese: magnesium — chemical element
  • Finnish: magnesium — chemical element
  • French: magnésium — chemical element
  • West-Frisian: magnesium — chemical element
  • Friulian: magnesi — chemical element
  • Galician: magnesio — chemical element
  • Georgian: მაგნიუმი (magniumi) — chemical element
  • German: Magnesium — chemical element
  • Greek: μαγνήσιο (magnísio) — chemical element
  • Haitian Creole: manyezyòm — chemical element
  • Hawaiian: makanekiuma — chemical element
  • Hebrew: מגנזיום (magnezium) — chemical element
  • Hindi: भ्राजातु (bhrājātu) — chemical element
  • Hindi: मैग्नीसियम (maignīsiyam) — chemical element
  • Hungarian: magnézium — chemical element
  • Icelandic: magnesín — chemical element
  • Icelandic: magnín — chemical element
  • Icelandic: magníum — chemical element
  • Icelandic: magnesíum — chemical element
  • Ido: magnezo — chemical element
  • Indonesian: magnesium — chemical element
  • Interlingua: magnesium — chemical element
  • Irish: maignéisiam — chemical element
  • Italian: magnesio — chemical element
  • Japanese: マグネシウム (maguneshiumu) — chemical element
  • Japanese: 苦土素 (kudoso) — chemical element
  • Javanese: magnesium — chemical element
  • Kannada: ಮ್ಯಗ್ನೀಶಿಯಮ್ (myagnīśiyam) — chemical element
  • Kashubian: magnéz — chemical element
  • Kashubian: magnez — chemical element
  • Kazakh: магний (magnii) — chemical element
  • Khmer: ម៉ាញ៉េស៊ីយ៉ុម (maañeesiiyoom) — chemical element
  • Khmer: ម៉ាញ៉េស្យូម (maañeesyoum) — chemical element
  • Korean: 마그네슘 (mageunesyum) — chemical element
  • Northern Kurdish: magnezyûm — chemical element
  • Latin: magnesium — chemical element
  • Latvian: magnijs — chemical element
  • Lingala: manezu class 9a/10a — chemical element
  • Lithuanian: magnis — chemical element
  • Low German: Magnesium — chemical element
  • Luxembourgish: Magnesium — chemical element
  • Macedonian: магнезиум (magnezium) — chemical element
  • Malay: magnesium — chemical element
  • Malayalam: മഗ്നീഷ്യം (magnīṣyaṁ) — chemical element
  • Maltese: manjeżju — chemical element
  • Manx: magneeshym — chemical element
  • Māori: konupora — chemical element
  • Mongolian: магни (magni) — chemical element
  • Mongolian: ᠮᠠᠭᠨᠢ (maɣni) — chemical element
  • Navajo: béésh łikoní — chemical element
  • Norwegian Bokmål: magnesium — chemical element
  • Norwegian Nynorsk: magnesium — chemical element
  • Occitan: magnèsi — chemical element
  • Persian: منیزیم (manyaziyom) — chemical element
  • Polish: magnez — chemical element
  • Portuguese: magnésio — chemical element
  • Punjabi: ਮੈਗਨੇਸ਼ਿਅਮ (maigneśiama) — chemical element
  • Quechua: qunta q'illay — chemical element
  • Romanian: magneziu — chemical element
  • Russian: ма́гний (mágnij) — chemical element
  • Scottish Gaelic: maignèisiam — chemical element
  • Scottish Gaelic: magnesium — chemical element
  • Serbo-Croatian: магнезијум — chemical element
  • Serbo-Croatian: ма̀гне̄зиј — chemical element
  • Serbo-Croatian: magnezium — chemical element
  • Serbo-Croatian: màgnēzij — chemical element
  • Sicilian: magnesiu — chemical element
  • Slovak: horčík — chemical element
  • Slovene: magnẹ̑zij — chemical element
  • Spanish: magnesio — chemical element
  • Swahili: magnesi — chemical element
  • Swedish: magnesium — chemical element
  • Tagalog: magnesyo — chemical element
  • Tajik: магний (magniy) — chemical element
  • Tamil: மக்னீசியம் (makṉīciyam) — chemical element
  • Tamil: வல்லகுவம் (vallakuvam) — chemical element
  • Thai: แมกนีเซียม (mɛ́k-nii-sîiam) — chemical element
  • Tibetan: མེག་ནི་སི་ཡམ (meg ni si yam) — chemical element
  • Turkish: magnezyum — chemical element
  • Ukrainian: ма́гній (máhnij) — chemical element
  • Ukrainian: ма́ґній (mágnij) — chemical element
  • Urdu: میگنیشیم — chemical element
  • Uyghur: ماگنىي (magniy) — chemical element
  • Uzbek: magniy — chemical element
  • Uzbek: магний (magniy) — chemical element
  • Vietnamese: magiê — chemical element
  • Welsh: magnesiwm — chemical element