space traveler, one who flies in a spaceship
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Astronaut Definition from Language, Idioms & Slang Dictionaries & Glossaries
Noun
1. a person trained to travel in a spacecraft; "the Russians called their astronauts cosmonauts"
(synonym) spaceman, cosmonaut
(hypernym) traveler, traveller
(hyponym) spacewalker
Astronaut Definition from Encyclopedia Dictionaries & Glossaries
An astronaut or cosmonaut is a person trained by a human spaceflight program to command, pilot, or serve as a crew member of a spacecraft. While generally reserved for professional space travelers, the terms are sometimes applied to anyone who travels into space, including scientists, politicians, journalists, and tourists.
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