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(sometimes initial capital letter) any of a series of Soviet earth-orbiting satellites:
Sputnik I was the world’s first space satellite.
any of a series of unmanned Soviet satellites, Sputnik 1 (launched in 1957) being the first man-made satellite to orbit the earth
Sputniks [(spoot-niks, sput-niks)]

A series of Soviet satellites launched in 1957 and in following years. These were the first artificial satellites.

Note: The appearance of Sputnik stimulated a great deal of effort in the education of scientists and engineers in the United States. This period is now referred to as the post-Sputnik boom.


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  • Sputter

    verb (used without object) 1. to make explosive popping or sizzling sounds. 2. to emit particles, sparks, etc., forcibly or explosively, especially accompanied by sputtering sounds. 3. to eject particles of saliva, food, etc., from the mouth in a light spray, as when speaking angrily or excitedly. 4. to utter or spit out words or […]

  • Sputtering

    noun 1. Engineering, Electronics. a process that uses ions of an inert gas to dislodge atoms from the surface of a crystalline material, the atoms then being electrically deposited to form an extremely thin coating on a glass, metal, plastic, or other surface. verb (used without object) 1. to make explosive popping or sizzling sounds. […]

  • Sputum

    noun, plural sputa [spyoo-tuh] /ˈspyu tə/ (Show IPA) 1. matter, as saliva mixed with mucus or pus, expectorated from the lungs and respiratory passages. noun (pl) -ta (-tə) 1. a mass of salivary matter ejected from the mouth 2. saliva ejected from the mouth mixed with mucus or pus exuded from the respiratory passages, as […]

  • Spuyten-duyvil-creek

    [spahyt-n dahy-vuh l] /ˈspaɪt n ˈdaɪ vəl/ noun 1. a channel in New York City at the north end of Manhattan Island, connecting the Hudson and Harlem rivers.

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