Phrase guide

inner core

noun · 3 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

The solid material found in the centre of some planets at extremely high temperature and pressure, distinct from the liquid outer core.

Definition source: English Wiktionary via Wiktextract

Topics: astronomy, natural-sciences, planetology

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

The solid material found in the centre of some planets at extremely high temperature and pressure, distinct from the liquid outer core.

The innermost part of the Earth, believed to be made of a nickel-iron alloy.

Definition source: English Wiktionary via Wiktextract

Topics: astronomy, geography, geology, natural-sciences, planetology

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

Used other than figuratively or idiomatically: see inner, core.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

No etymology was provided for this word.

Across languages

Translations

9 source translations are retained for this English entry.

  • Catalan: nucli intern — innermost part of the Earth
  • Chinese Mandarin: 內核 /内核 (nèihé) — innermost part of the Earth
  • Dutch: binnenkern — innermost part of the Earth
  • Finnish: sisäydin — innermost part of the Earth
  • French: noyau interne — innermost part of the Earth
  • Italian: nucleo interno — innermost part of the Earth
  • Japanese: 内核 (naikaku) — innermost part of the Earth
  • Korean: 내핵 (naehaek) — innermost part of the Earth
  • Russian: вну́треннее ядро́ (vnútrenneje jadró) — innermost part of the Earth