Astronaut Definition
ăstrə-nôt
astronauts
noun
astronauts
A person trained to pilot, navigate, or otherwise participate as a crew member of a spacecraft.
American Heritage
A person trained to make rocket flights in outer space.
Webster's New World
A member of the crew of a spaceship or other spacecraft that travels beyond Earth's atmosphere, or someone trained to serve that purpose.
Wiktionary
Synonyms:
- cosmonaut
- spaceman
- rocketeer
- rocket pilot
- space pilot
- spacewoman
- space traveler
- explorer
- spacewalker
Other Word Forms of Astronaut
Noun
Singular:
astronaut
Plural:
astronautsOrigin of Astronaut
-
astro– Greek nautēs sailor (from naus ship nāu- in Indo-European roots)
From American Heritage Dictionary of the English Language, 5th Edition
Coined from Ancient Greek ἄστρον (ástron, “star”) and ναύτης (naútēs, “sailor”).
From Wiktionary
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