Standard Lemma guide

magnetosphere

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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  • /mæɡˈni.təˌsfɪr/
  • UK: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

The comet-shaped region around Earth or another planet in which charged particles are trapped or deflected. Shaped by the solar wind and the planet's magnetic field.

Definition source: English Wiktionary via Wiktextract

Topics: natural-sciences, physical-sciences, physics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

the magnetic field of a planet; the volume around the planet in which charged particles are subject more to the planet's magnetic field than to the solar magnetic field

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: magnetic field, magnetic flux, flux

History

Etymology

Etymology tree Pre-Greekbor.? Ancient Greek Μάγνης (Mágnēs) Ancient Greek μᾰ́γνης (mắgnēs)bor. Old French magnetebor. ▲ Ancient Greek μᾰ́γνης (mắgnēs)bor. Latin magnēsbor. Middle English magnete English magnet English magnet- Ancient Greek -ο- (-o-)der. Latin -o-bor. English -o- English magneto- Ancient Greek σφαῖρᾰ (sphaîră)bor. Latin sphaera Late Latin sphērader. Old French spherebor. Middle English spere English sphere English -sphere English magnetosphere From magneto- + -sphere.

Across languages

Translations

22 source translations are retained for this English entry.

  • Basque: magnetosfera — region around a planet
  • Belarusian: магнітасфе́ра (mahnitasfjéra) — region around a planet
  • Catalan: magnetosfera — region around a planet
  • Chinese Mandarin: 磁氣圈 /磁气圈 (cíqìquān) — region around a planet
  • Chinese Mandarin: 磁層 /磁层 (cícéng) — region around a planet
  • Czech: magnetosféra — region around a planet
  • Finnish: magnetosfääri — region around a planet
  • French: magnétosphère — region around a planet
  • Galician: magnetosfera — region around a planet
  • German: Magnetosphäre — region around a planet
  • Greek: μαγνητόσφαιρα (magnitósfaira) — region around a planet
  • Italian: magnetosfera — region around a planet
  • Japanese: 磁気圏 (jikiken) — region around a planet
  • Korean: 자기권 (jagigwon) — region around a planet
  • Polish: magnetosfera — region around a planet
  • Portuguese: magnetosfera — region around a planet
  • Russian: магнитосфе́ра (magnitosféra) — region around a planet
  • Spanish: magnetosfera — region around a planet
  • Tagalog: balnibulog — region around a planet
  • Turkish: magnetosfer — region around a planet
  • Ukrainian: магнітосфе́ра (mahnitosféra) — region around a planet
  • Vietnamese: từ quyển — region around a planet