Definition of "sputnik" []

• Any of a series of Soviet unmanned space satellites, especially the first one in 1957. (noun)

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• ""militarization of space" then you might have as well called sputnik militarization of space."
• "When CNN’s Jeff Greenfield assured the crowd, “I haven’t planted a skutnik here,” I stopped him: I had heard of a sputnik, the Russian word for the first Soviet satellite, but what was a skutnik?"
• "Someone discovered that the code word was "sputnik" and when applied to each line gives us the decode."