Prime mover
Prime mover may refer to:
- A machine that transforms energy from thermal, electrical or pressure form to mechanical form, typically an engine or turbine
Philosophy and theology
- The prime mover, primum movens, an unmoved mover in the philosophy of Aristotle, later used by Saint Thomas Aquinas in his cosmological arguments, as a "first cause" of existence
Social Science Theory
- A hypothetical person that has a significant impact on society and history due to the exercise of their free will, unfettered by external psychological influences or social forces; also the name of the theory that affirms the existence and possibility of such people.
Railways
Haulage
- Tractor unit or towing engine, a vehicle that provides the motive power to haul a load, as in:
- Semi-trailer truck in Australian English
- Ballast tractor, a heavy haulage road vehicle designed to pull or push heavy or exceptionally large loads
- Artillery tractor, a military vehicle hauling an artillery piece
- Steam tractor, a vehicle powered by a steam engine which is used for pulling
- Tractor, a vehicle specifically designed to deliver a high tractive effort (or torque) at slow speeds
Entertainment
- Prime Mover (film), a 2009 Australian romantic crime film set in Dubbo
- An episode of The Twilight Zone, "The Prime Mover"
- Prime Mover, the 1987 hit single from Zodiac Mindwarp
- Prime Mover, the title of a song on Rush's 1987 album Hold Your Fire
- Prime Mover, the title of a 1988 album from the band Kerry Livgren
- Prime Mover (videogame), a videogame published by Psygnosis in 1993
- The Prime Movers, a quasi-omniscient race of alien superbeings in the Buck Godot comic series by Phil Foglio
- The Prime Movers (Michigan band), a 60's band featuring a pre-Stooges Iggy Pop
- The Prime Movers (Los Angeles band), a predecessor band of Dread Zeppelin
- The Prime Movers (British band), a band founded by Graham Day of The Prisoners
- Prime Mover (comics), a fictional character in the Marvel Universe