cosmonaut
noun
cos·mo·naut
ˈkäz-mə-ˌnȯt 
-ˌnät
: an astronaut of the Soviet or Russian space program
Examples of cosmonaut in a Sentence
Recent Examples on the Web
The Dragon, carrying Williams, Wilmore, NASA astronaut Nick Hague, and Roscosmos cosmonaut Aleksandr Gorbunov, is set to splash down off the Florida coast Tuesday evening.
—
Diana Leyva, The Tennessean, 2 July 2025
Roscosmos cosmonauts Sergey Ryzhikov and Alexey Zubritskiy measured the flow through their large and small blood vessels, while Kirill Peskov checked the radiation levels on board the space station.
—Robert Z. Pearlman, Space.com, 28 June 2025
Farkas launched with the Soviets in 1980, taking along a teddy bear in a cosmonaut suit that went back up with Kapu.
—Arkansas Online, 26 June 2025
Also at the station is NASA astronaut Jonny Kim, who reached the outpost in April 2025 with cosmonauts Sergey Ryzhikov and Alexey Zubritsky.
—Eric Lagatta, USA Today, 14 June 2025
See All Example Sentences for cosmonaut
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.
Diana Leyva, The Tennessean, 2 July 2025
Roscosmos cosmonauts Sergey Ryzhikov and Alexey Zubritskiy measured the flow through their large and small blood vessels, while Kirill Peskov checked the radiation levels on board the space station.
—Robert Z. Pearlman, Space.com, 28 June 2025
Farkas launched with the Soviets in 1980, taking along a teddy bear in a cosmonaut suit that went back up with Kapu.
—Arkansas Online, 26 June 2025
Also at the station is NASA astronaut Jonny Kim, who reached the outpost in April 2025 with cosmonauts Sergey Ryzhikov and Alexey Zubritsky.
—Eric Lagatta, USA Today, 14 June 2025
See All Example Sentences for cosmonaut
Cite this Entry
“Cosmonaut.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cosmonaut. Accessed 18 Jul. 2025.
Copy CitationKids Definition
cosmonaut
noun
cos·mo·naut
ˈkäz-mə-ˌnȯt
-ˌnät
: a Soviet or Russian astronaut
Love words? Need even more definitions?
Merriam-Webster unabridged
Share