noun ·Uncommon ·Advanced level

Definitions

Noun

1. 1
   A robotic space vehicle designed to voyage beyond Earth's orbit.
2. 2
   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 wordnet

Synonyms

All synonyms

aeolusalouetteannaapolloarielartificial satellite