steam locomotive

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steam locomotive

A steam locomotive pulls a long train across the countryside.

Definition

Noun: A steam locomotive is a railway locomotive that produces its pulling power through a steam engine. The engine burns fuel, typically coal or wood, to heat water in a boiler, creating steam. This steam is then used to drive pistons or turbines, which turn the wheels and propel the locomotive along the tracks.

Usage

The term "steam locomotive" is used to specifically describe the entire, self-contained vehicle powered by steam. It distinguishes this type of train engine from those powered by diesel or electricity. - The museum restored a historic steam locomotive to full working order. - The last steam locomotive was retired from regular service on this line decades ago. - The sound of a steam locomotive whistle is iconic.

Advanced Usage
  • As a historical or technical subject: The term is commonly used in historical, engineering, and enthusiast contexts.
    • His thesis focused on the thermodynamic efficiency of the late-era steam locomotive.
  • In metaphorical or comparative language: Sometimes used to evoke a sense of power, antiquity, or relentless force.
    • The old CEO ran the company like a steam locomotive—powerful but inflexible and requiring constant fuel.
Variants and Related Words
  • Locomotive (n): The general term for a powered railway vehicle used for pulling trains. A steam locomotive is one type.
  • Steam engine (n): The engine mechanism that uses steam to produce mechanical work. It is the core component a steam locomotive.
  • Steam train (n): Often used to describe a train pulled by a steam locomotive.
  • Iron Horse (n, historical idiom): A poetic or historical nickname for a steam locomotive.
Synonyms
  • Steam engine (when referring to the locomotive as a whole in a general context, though technically the engine is a part of it).
  • Steamer (informal, historical).
Related Phrases and Compounds
  • Steam locomotive shed: A building where steam locomotives are stored and maintained.
  • Steam locomotive era: The period in history when steam locomotives were the primary form of railway traction.
steam locomotive

A steam locomotive pulls a long train across the countryside.

Noun
  1. a locomotive powered by a steam engine