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extraplanetary

[ek-struh-plan-i-ter-ee] /ˌɛk strəˈplæn ɪˌtɛr i/
adjective
1.
existing or occurring in outer space beyond a planet, especially away from the planet Earth.
Origin
1865-1870
1865-70; extra- + planetary
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for extraplanetary
  • The idea of extraplanetary colonization is to make that statement untrue.

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