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