Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Any of a series of Soviet satellites sent into Earth orbit, especially the first, launched October 4, 1957.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a Russian artificial satellite

Etymologies

Russian sputnik (zemlyi), fellow traveler (of Earth) : so-, s-, together; see ksun in Indo-European roots + put', path, way; see pent- in Indo-European roots + -nik, n. suff.
(American Heritage® Dictionary of the English Language, Fourth Edition)

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