Standard Lemma guide

heliosynchronous

adj · 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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1

adj

Meaning 1

Describing an orbit around the Earth where each passage in the same direction along a given latitude will occur throughout the year at the same true solar time.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Sun-synchronous

Antonyms: none provided

2

adj

Meaning 2

Describing an orbit around the Sun in which the period of revolution is the same as the Sun's period of rotation.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From helio- + synchronous.

Across languages

Translations

5 source translations are retained for this English entry.

  • Dutch: zonsynchroon — describing an orbit around the Earth
  • Finnish: aurinkosynkroninen — describing an orbit around the Earth
  • French: héliosynchrone — describing an orbit around the Earth
  • Italian: eliosincrono — describing an orbit around the Earth
  • Finnish: heliosynkroninen — describing an orbit around the Sun