motive power

• Energía o fuerza que hace que algo se mueva o funcione, utilizada a menudo en contextos de ingeniería o transporte para referirse a la fuente de energía de un vehículo o mecanismo.

The energy or force that causes something to move or operate, often used in engineering or transportation contexts to refer to the power source of a vehicle or machine.

1. Mechanical energy sourceC1formal

   The energy or force that causes motion in a machine or vehicle.

   fuerza motriz

   • Steam engines provided the motive power for early trains.
   • Electric motors supply the motive power for modern electric cars.
   • The turbine generates the motive power needed to drive the generator.

2. Driving forceC2formal

   A figurative force or influence that drives action or progress.

   fuerza motriz

   • Innovation is the motive power behind economic growth.
   • Her passion for justice was the motive power of her activism.
   • Curiosity serves as the motive power for scientific discovery.