Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The regions beyond the gravitational influence of Earth encompassing interplanetary, interstellar, and intergalactic space.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun All of space beyond the gravitational influence of Earth, or outside the Solar System

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun any region in space outside the solar system

Etymologies

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Examples

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