[1] : The Collaborative International Dictionary of English v.0.48

space probe \space" probe\, n.
   an unmanned rocket carrying instruments to explore objects or
   conditions in outer space; -- used mostly for vehicles
   travelling beyond the earth's gravitational field, rather
   than in orbital or suborbital flight.
   pjc

[2] : WordNet (r) 2.0

space probe
     n : a rocket-propelled guided missile that can escape the
         earth's atmosphere; makes observations of the solar
         system that cannot be made by terrestrial observation

[3] : Moby Thesaurus II by Grady Ward, 1.0

69 moby thesaurus words for "space probe":
   atda, ats, alouette, anna, apollo, ariel, atlas-score,
   biosatellite, comsat, cosmos, courier, diapason, discoverer, ers,
   early bird, echo, elektron, explorer, gatv, gemini, injun,
   intelsat, lofti, luna, lunar orbiter, lunik, mariner, mars probes,
   mercury, midas, nimbus, oao, ogo, oso, pageos, pegasus, pioneer,
   proton, ranger, relay, samos, san marco, secor, sputnik, surveyor,
   syncom, telstar, transit, vanguard, viking, voskhod, wresat, zond,
   artificial satellite, artificial satellites,
   communications satellite, geo probe, geodetic satellite,
   geophysical satellite, navigational satellite, probe,
   research satellite, robot satellite, satellite, space satellite,
   spacecraft, sputnik, unmanned satellite, weather satellite

Space Probe >> S Words
Space Probe, definition of term: Space Probe
space+probe_pag1.html

Probe >> P Words
Probe, definition of term: Probe
probe_pag1.html

Space >> S Words
Space, definition of term: Space
space_pag1.html

Space Travel >> S Words
Space Travel, definition of term: Space Travel
space+travel_pag1.html

Space Vehicle >> S Words
Space Vehicle, definition of term: Space Vehicle
space+vehicle_pag1.html

Space Walk >> S Words
Space Walk, definition of term: Space Walk
space+walk_pag1.html

Space Station >> S Words
Space Station, definition of term: Space Station
space+station_pag1.html

Deep Space >> D Words
Deep Space, definition of term: Deep Space
deep+space_pag1.html

Outer Space >> O Words
Outer Space, definition of term: Outer Space
outer+space_pag1.html

Disk Space >> D Words
Disk Space, definition of term: Disk Space
disk+space_pag1.html

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