Phrase guide

tertiary planet

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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1

noun

Meaning 1

Used other than figuratively or idiomatically: see tertiary, planet. (the third planet; usually counting outwards from the central sun)

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

A planet of the third-degree/third-order. The planet of a planet (secondary planet) of a planet (primary planet). An object (moonmoon) which orbits an object (moon) which orbits an object (planet) which orbits a star.

Definition source: English Wiktionary via Wiktextract

Usage: archaic

Topics: astronomy, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

An aspect in astrology, a calculated node in a reading, that is not a real planet.

Definition source: English Wiktionary via Wiktextract

Topics: astrology, human-sciences, mysticism, philosophy, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From tertiary + planet.