any one of the many small planets that go around the sun Wordfinderuniverseasteroid, astronomy, comet, constellation, cosmic, galaxy, meteorite, orbit, space, the universe Oxford Collocations DictionaryAsteroid is used before these nouns: impact See full entry See related entries: The universe Word Originearly 19th cent.: from Greek asteroeidēs ‘starlike’, from astēr ‘star’.
Check pronunciation: asteroid
