|
  • Search Results
  • Advanced Search
  • List Builder
  • Random Word

perpetual motion machine

DEFINITIONS OF: perpetual motion machine

1

n a machine that can continue to do work indefinitely without drawing energy from some external source; impossible under the law of conservation of energy

Type of:
machine
any mechanical or electrical device that transmits or modifies energy to perform or assist in the performance of human tasks
Launch
WORD FAMILY
USAGE EXAMPLES