third railnoun [ C ]
uk/ˌθɜːd ˈreɪl//ˌθɝːd ˈreɪl/a metal bar, running parallel with train tracks, that supplies electricity to some types of train
Thesaurus: synonyms and related words
Railways: trains & parts of trains
- air brake
- baggage car
- bogie
- boiler
- bullet train
- choo-choo
- coach
- commuter train
- couchette
- diesel
- emergency cord
- freight car
- intercity
- maglev train
- rolling stock
- shunt
- shuttle
- sleeping car
- truck
- wagon-lit
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