cosmonaut

noun

cos·​mo·​naut ˈkäz-mə-ˌnȯt How to pronounce cosmonaut (audio)
-ˌnät
: an astronaut of the Soviet or Russian space program

Examples of cosmonaut in a Sentence

Recent Examples on the Web Depressurize too quickly, however, and the issue is almost instantaneously fatal due to brain hemorrhaging—as was sadly the case for three Russian cosmonauts aboard the Salyut-1 capsule in 1971. Andrew Paul, Popular Science, 13 June 2024 The eighth crew composed of three NASA astronauts and one cosmonaut launched March 3 and docked March 5 to await the arrival of Boeing's Starliner capsule. Eric Lagatta, USA TODAY, 6 June 2024 Its four crew members are NASA astronauts Commander Matthew Dominick, Pilot Michael Barratt, Mission Specialist Jeanette Epps and Roscosmos cosmonaut Mission Specialist Alexander Grebenkin. Richard Tribou, Orlando Sentinel, 20 June 2024 The crew removed a seat liner from the Russian capsule and retrofitted it into the American spacecraft so the cosmonauts could safely catch a ride with the Americans if the need arose. Debra Utacia Krol, The Arizona Republic, 29 Mar. 2024 See all Example Sentences for cosmonaut 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'cosmonaut.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

Russian kosmonavt, from Greek kosmos + Russian -navt (as in aeronavt aeronaut)

First Known Use

1955, in the meaning defined above

Time Traveler
The first known use of cosmonaut was in 1955

Dictionary Entries Near cosmonaut

Cite this Entry

“Cosmonaut.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cosmonaut. Accessed 7 Jul. 2024.

Kids Definition

cosmonaut

noun
cos·​mo·​naut ˈkäz-mə-ˌnȯt How to pronounce cosmonaut (audio)
-ˌnät
: a Soviet or Russian astronaut

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