The American HeritageĀ® Dictionary of the English Language, 4th Edition
n. The launching of vehicles into outer space.
adj. Engaged in the launching of vehicles into outer space: "efforts in planetary exploration . . . achieved in cooperation with other spacefaring nationsā ( Chet Raymo).
adj. Engaged in the building and launching of vehicles into space.
n. spaceflight
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a voyage outside the Earth's atmosphere
Word Usage
"That's why the Vision made such a point about using the resources of the Moon -- it's close, we know what's there, and it's the perfect place to learn the skills we need to create real, long-term spacefaring capability."