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