cosmonaut

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noun cos·mo·naut \ˈkäz-mə-ˌnȯt, -ˌnät\

Definition of cosmonaut

  1. :  an astronaut of the Soviet or Russian space program

Recent Examples of cosmonaut from the Web

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)


COSMONAUT Defined for English Language Learners

cosmonaut

play
noun

Definition of cosmonaut for English Language Learners

  • : an astronaut in the space program of Russia or the former Soviet Union


COSMONAUT Defined for Kids

cosmonaut

play
noun cos·mo·naut \ˈkäz-mə-ˌnȯt\

Definition of cosmonaut for Students

  1. :  an astronaut in the space program of Russia or the former Soviet Union



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