Interplanetary
adj
adj ·6 syllables ·Uncommon ·College level
Definitions
Adjective
- 1 Existing or occurring between planets. not-comparable
"Humans are just beginning to explore interplanetary travel."
Adjective
- 1 between or among planets wordnet
Example
More examples"Interplanetary space is hardly tranquil. High-energy charged particles from the Sun, as well as from beyond our solar system, constantly whizz by. These can damage satellites and endanger astronaut health."
Etymology
From inter- + planetary.