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Astronaut

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astronaut

One entry found.

Main Entry: as·tro·naut

Pronunciation: \ˈas-trə-ˌnȯt, -ˌnät\

Function: noun

Etymology: astr- + -naut (as in aeronaut)

Date: 1929

: a person who travels beyond the earth's atmosphere; also : a trainee for spaceflight

Learn more about "Astronaut"

Learn more about "Astronaut" and related topics at Britannica.com

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