locomotive

a large powerful engine that pulls trains along railway tracks

locomotora, máquina de vapor

Collocations locomotive engine

• The locomotive pulled the train along the tracks.

  La locomotora arrastró el tren por los rieles.

a strong reason for doing something; a motive or driving force

motivo, impulso

Collocations locomotive force

• Her ambition was the locomotive of her success.

  Su ambición fue el motor de su éxito.