English dictionary
Info: This web site is based on WordNet 3.0 from Princeton University.
English noun: perpetual motion | |||
| 1. | perpetual motion (state) motion that continues indefinitely without any external source of energy; impossible in practice because of friction | ||
| Broader (hypernym) | motion | ||
Based on WordNet 3.0 copyright © Princeton University.
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Web design: Orcapia v/Per Bang. English edition: .
2025 onlineordbog.dk