We found 3 dictionaries that define the word perpetual-motion machine:

General (2 matching dictionaries)

1. perpetual-motion machine: Dictionary.com
2. Perpetual-motion machine: Wikipedia, the Free Encyclopedia

Computing (1 matching dictionary)

3. perpetual-motion machine: Encyclopedia

▸ Words similar to perpetual-motion machine ▸ Usage examples for perpetual-motion machine ▸ Idioms related to perpetual-motion machine ▸ Wikipedia articles (New!) ▸ Words that often appear near perpetual-motion machine ▸ Rhymes of perpetual-motion machine ▸ Invented words related to perpetual-motion machine