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diesel-electric locomotive

diesel-electric locomotive

5.1
A train engine that uses a diesel engine to make electricity that runs its electric motors
  • noun
  • /ˈdiːzəl ɪˈlɛktrɪk ˌloʊkəˈmoʊtɪv/
  • Specialized
translation icon : locomotora diésel-eléctrica
  • The new diesel-electric locomotive can travel long distances without needing to refuel frequently.

Examples

  • Diesel-electric locomotives began to emerge toward the latter part of the decade.

    Academic text (2005)
  • Many rail companies are upgrading their fleets with diesel-electric locomotives to reduce emissions and improve performance.

  • Engineers praised the efficiency of the diesel-electric locomotive as it powered through the mountainous terrain.

Synonyms

engine
vsdiesel-electric locomotive
89 3.5

A vehicle that pulls train cars on railway tracks

specifies that the onboard power produces electricity to run motors rather than direct drive
locomotive
vsdiesel-electric locomotive
37 4.6

A train engine that pulls rail cars

specifies that power comes from onboard-generated electricity driving motors
diesel locomotive
vsdiesel-electric locomotive
  • Specialized
1 4.1

A railway engine that runs on diesel fuel rather than steam or electricity

uses onboard-generated electricity to run electric motors instead of direct mechanical drive
diesel-electric
vsdiesel-electric locomotive
  • Specialized
1 5.5

A train engine that uses electric motors powered by a diesel engine

is the longer form naming the same vehicle
locomotive engine
vsdiesel-electric locomotive
3.6

A machine on train tracks that pulls or pushes trains

highlights the use of generated electricity to operate motors rather than general propulsion
railway locomotive
vsdiesel-electric locomotive
  • UK
4.4

A large machine on wheels that pulls a train on tracks

focuses on electric-motor drive powered by onboard electricity rather than generic power sources

Surface Forms

Morphology

diesel-electric + locomotive

The phrase is fully compositional: 'diesel-electric' combines 'diesel' (a diesel engine/fuel) and 'electric' (using electricity), and with 'locomotive' (rail vehicle) a B1 learner who knows these words can infer it is a locomotive powered by electric motors driven by a diesel engine. This naming pattern is common and cross-linguistically transparent in technical contexts, so the meaning is directly derivable from the constituents.

Etymology

Diesel-electric locomotive literally describes a train where a diesel engine makes electricity to run the electric motors on the wheels. So the name explains that the locomotive uses a diesel engine to 'power' those electric motors.