prime mover: Meaning and Definition of

prime' mov'er

1. the initial agent, as wind or electricity, that puts a machine in motion.
2. a machine, as a water wheel or steam engine, that receives and modifies energy as supplied by some natural source.
2. means of towing a cannon, as an animal, truck, or tractor.
3. Also calledthat which is the first cause of all movement and does not itself move.
4. a person or thing that initiates or gives power and cohesion to something, as an idea, endeavor, or organization.