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Definition of interplanetary

interplanetary

/ˌɪn.tərˈplæn.əˌtɛr.i/
in · ter · plan · e · tar · y
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interplanetary Lexical Profile

interplanetary Game Scores & Validity

• adjective

1

Situated, occurring, or traveling between planets within a planetary system.

Example

"The space agency launched an interplanetary probe to study the atmosphere of Venus and the surface of Mars."

Synonyms
View all synonyms for interplanetary
Antonyms
View all antonyms for interplanetary

Word Nuance & Usage

Do not confuse 'interplanetary' (occurring between planets within the same solar system) with 'interstellar' (occurring between different star systems) or 'intergalactic' (occurring between galaxies).

• Rhymes for interplanetary

• Nearby Words

interparty
interpersonal
interpersonally
interplanetary
interplay
interpose
interpret

Cite this Entry

Wordmom. (2026). Definition of Interplanetary. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/interplanetary
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