centre-rail
Definition
Noun: - A middle rail on a railway track: "centre-rail" refers to an additional rail placed between the two standard running rails, especially on steep mountain railways, used to provide extra traction or guidance for the train's wheels.
Usage Examples
- (The middle rail helps maintain grip on the tracks.)
- (They checked the condition of the additional rail.)
Advanced Usage
- "centre-rail system": a type of railway track design that includes a centre rail for stability or power supply.
- The cogwheel train relies on a centre-rail system to climb the steep gradient. (The middle rail engages with gears on the train.)
Variants and Related Words
- Centre-railway (n): a railway that uses a centre rail as part of its track structure.
- The old centre-railway was a popular attraction for tourists. (The railway with a middle rail was historically significant.)
Synonyms
- Middle rail: a rail located in the centre of the track.
- Third rail: a similar concept, though often used for electric power supply rather than traction.
Related Idioms
- None common. "Centre-rail" is a technical term and does not appear in idiomatic expressions.