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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
SpaceX Polaris Dawn spacewalk was first of its kind Until Thursday's event, spacewalks had only been carried out by government agencies, such as NASA astronauts and Russian cosmonauts. Brandi D. Addison, Austin American-Statesman, 12 Sep. 2024 Perhaps not coincidentally, that’s the same year Russian cosmonaut Valentina Tereshkova became the first woman to venture into space. Christopher Knight, Los Angeles Times, 29 Oct. 2024 The Russian studied engineering at the Moscow Aviation Institute, graduating with a specialty in operating and repairing aircraft before his selection as a cosmonaut in 2018. Eric Lagatta, USA TODAY, 29 Sep. 2024 The duo will join five other astronauts and cosmonauts already onboard the orbiting lab, rounding out the Expedition 72 crew. Denise Chow, NBC News, 27 Sep. 2024 See all Example Sentences for cosmonaut 

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 28 Nov. 2024.

Kids Definition

cosmonaut

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

More from Merriam-Webster on cosmonaut

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