perpetual
/pəˈpɛtjʊəl/ · per.pu.tu.al
adjective
- Lasting forever, or for an indefinitely long time The perpetual motion machine was a myth that scientists disproved.
- Set up to be in effect or have tenure for an unlimited duration The perpetual contract between the two companies ensured stability in the market.
- Continuing; uninterrupted The perpetual sound of the ocean waves was soothing to the listener.
noun
- A perpetual motion machine is a hypothetical device that can operate indefinitely without an external source of energy. The inventor claimed to have built a perpetual motion machine, but it was later debunked as a hoax.
Did you know? The concept of perpetual motion has been a topic of interest in physics for centuries, with many scientists attempting to create a machine that can operate indefinitely.