cosmonaut
noun
cos·mo·naut
ˈkäz-mə-ˌnȯt 
-ˌnät
: an astronaut of the Soviet or Russian space program
Examples of cosmonaut in a Sentence
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Meir wasn't just in the Dragon capsule for fun, her and the rest of the Crew-12 astronauts were told to shelter in the capsule as the cosmonauts, Sergey Kud-Sverchkov and Sergei Mikaev, attempted to fix an ongoing leak on the station.
—
Chelsea Gohd, Space.com, 9 June 2026
Roscomos cosmonaut Aleksandr Gorbunov making his first flight.
—Richard Tribou, The Orlando Sentinel, 8 June 2026
This allows the cosmonauts to open up the PrK to complete their work.
—Stephen Clark, ArsTechnica, 5 June 2026
One, of course, is the branch with all the cosmonauts.
—Ben Travers, IndieWire, 29 May 2026
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Chelsea Gohd, Space.com, 9 June 2026
Roscomos cosmonaut Aleksandr Gorbunov making his first flight.
—Richard Tribou, The Orlando Sentinel, 8 June 2026
This allows the cosmonauts to open up the PrK to complete their work.
—Stephen Clark, ArsTechnica, 5 June 2026
One, of course, is the branch with all the cosmonauts.
—Ben Travers, IndieWire, 29 May 2026
See All Example Sentences for cosmonaut
Cite this Entry
“Cosmonaut.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cosmonaut. Accessed 12 Jun. 2026.
Copy CitationKids Definition
cosmonaut
noun
cos·mo·naut
ˈkäz-mə-ˌnȯt
-ˌnät
: a Soviet or Russian astronaut
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