perpetual motion
noun /pəˌpetʃuəl ˈməʊʃn/
/pərˌpetʃuəl ˈməʊʃn/
[uncountable]- a state in which something moves continuously without stopping, or appears to do so
- We're all in a state of perpetual motion in this office (= we're always moving around or changing things).
- Scientists have never discovered the secret of perpetual motion.
- His travel schedule keeps him in perpetual motion.