Word
interplanetary
Phoneticsin·ter·plan·e·tary
US/ˌɪntɝˈpɫænəˌtɛɹi/
UK/ˌɪntəplˈænɪtəɹi/
Astronomy
Definition
adj. relating to travel or communication between different planets. You use this to describe things that move or exist in space between worlds.
adj. relating to or occurring between planets. Typically describes travel, communication, or phenomena that span the space between celestial bodies.
Examples
“The probe is designed for interplanetary travel.”
“Scientists are developing new propulsion systems to make interplanetary missions faster and more efficient.”
“The discovery of microbial fossils in Martian soil would represent the first evidence of interplanetary contamination, fundamentally altering our understanding of the origins of life in the solar system.”
Examples
simple
“The probe is designed for interplanetary travel.”
contextual
“Scientists are developing new propulsion systems to make interplanetary missions faster and more efficient.”
complex
“The discovery of microbial fossils in Martian soil would represent the first evidence of interplanetary contamination, fundamentally altering our understanding of the origins of life in the solar system.”
Real-World Examples
“This means the trajectory for DAVINCI will require relatively little energy, at least as far as interplanetary missions go.” Etymology
From inter- + planetary.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Word family
NOUN
ADJECTIVE
Domain
- Exam level
- CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
- Frequency
- Occasional
- Level
- B2 · Upper Intermediate
- Updated
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QR code
englishreference.com/q/interplanetary