Phrase guide

sidereal year

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 orbital period of the Earth with respect to the fixed stars.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

The time it takes for any astronomical object in orbit around a central star to orbit that star, with respect to distant stars.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

the time for the earth to make one complete revolution around the sun, relative to the fixed stars

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: year, sidereal time

History

Etymology

No etymology was provided for this word.

Across languages

Translations

13 source translations are retained for this English entry.

  • Chinese Mandarin: 恆星年 /恒星年 (héngxīngnián) — orbital period
  • Danish: siderisk år — orbital period
  • Dutch: siderisch jaar — orbital period
  • Finnish: sideerinen vuosi — orbital period
  • Finnish: tähtivuosi — orbital period
  • French: année sidérale — orbital period
  • German: siderisches Jahr — orbital period
  • Japanese: 恒星年 (kōseinen) — orbital period
  • Korean: 항성년 (hangseongnyeon) — orbital period
  • Romanian: an sideral — orbital period
  • Russian: сидерический год (sideričeskij god) — orbital period
  • Russian: звёздный год (zvjózdnyj god) — orbital period
  • Ukrainian: сидеричний рік (syderyčnyj rik) — orbital period