Phrase guide

magnesium oxide

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

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No pronunciation record was provided for this word.

1

noun

Meaning 1

A white powder (MgO) with a high melting point; it occurs naturally as periclase, an ore of magnesium.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

Topics: chemistry, inorganic-chemistry, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: magnesia

Antonyms: none provided

2

noun

Meaning 2

a white solid mineral that occurs naturally as periclase; a source of magnesium

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: periclase, magnesia

Antonyms: none provided

Broader terms: mineral

History

Etymology

No etymology was provided for this word.

Across languages

Translations

23 source translations are retained for this English entry.

  • Armenian: մագնեզիումի օքսիդ (magneziumi ōkʻsid) — white powder
  • Catalan: òxid de magnesi — white powder
  • Chinese Mandarin: 氧化镁 (yǎnghuàměi) — white powder
  • Esperanto: magnezia oksido — white powder
  • Estonian: magneesiumoksiid — white powder
  • Finnish: magnesiumoksidi — white powder
  • French: oxyde de magnésium — white powder
  • French: magnésie — white powder
  • Galician: óxido de magnesio — white powder
  • German: Magnesiumoxid — white powder
  • Greek: μαγνησία (magnisía) — white powder
  • Ancient Greek: μαγνησία (magnēsía) — white powder
  • Hindi: भ्राजातु जारकिक (bhrājātu jārkik) — white powder
  • Hungarian: magnézium-oxid — white powder
  • Ido: magnezio — white powder
  • Italian: ossido di magnesio — white powder
  • Japanese: 苦土 (kudo) — white powder
  • Persian: منیزیم اکسید (manyaziyom oksid) — white powder
  • Polish: tlenek magnezowy — white powder
  • Portuguese: óxido de magnésio — white powder
  • Russian: окси́д ма́гния (oksíd mágnija) — white powder
  • Spanish: óxido de magnesio — white powder
  • Swedish: magnesiumoxid — white powder