Definition of cosmonaut
: an astronaut of the Soviet or Russian space program
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Recent Examples of cosmonaut from the Web
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The woman turned out to be Valentina Tereshkova, the first female cosmonaut.
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On April 12 of that year, Soviet cosmonaut Yuri Gagarin became the first person to fly in space .
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Interkosmos includes newsreel footage of cosmonauts in training, cheap and charming animation and several musical interludes, including one of a field hockey team smacking balls for Marx and Lenin.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cosmonaut'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of cosmonaut
Russian kosmonavt, from Greek kosmos + Russian -navt (as in aeronavt aeronaut)
First Known Use: 1955
COSMONAUT Defined for English Language Learners
cosmonaut
playDefinition of cosmonaut for English Language Learners
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: an astronaut in the space program of Russia or the former Soviet Union
COSMONAUT Defined for Kids
cosmonaut
playDefinition of cosmonaut for Students
: an astronaut in the space program of Russia or the former Soviet Union
Learn More about cosmonaut
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See words that rhyme with cosmonaut Spanish Central: Translation of cosmonaut Nglish: Translation of cosmonaut for Spanish speakers Britannica.com: Encyclopedia article about cosmonaut
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