Aerospace. an unmanned spacecraft designed to explore the solar system and transmit data back to earth.
Origin of space probe
First recorded in 1955–60
Also called probe.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for space probe
a vehicle, such as a satellite, equipped to obtain scientific information, normally transmitted back to earth by radio, about the atmosphere, surface, and temperature of a planet, conditions in space, etc
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012