- (music) A subgenre of rock music, characterised by long psychedelic instrumental passages and lyrics dealing with science fiction or outer space.
- Hypernym: rock
- 2017, William Echard, Psychedelic Popular Music: A History through Musical Topic Theory, Indiana University Press (→ISBN), page 201:
- Apart from individual songs, there were certain bands that became associated with these sorts of extended sonic journeys, showing many traits of space rock without much or any overt interest in space topicality as such.
rock music subgenre