Meaning of water trough | Babel Free

Definitions

1. a long trough placed between the rails in a railway track, which enabled a steam locomotive to replenish its water supply without stopping by lowering a scoop. They were removed at the end of steam train operation.
   UK
2. Used other than figuratively or idiomatically: see water, trough: a watering trough for livestock.

Examples

“No water troughs are provided on any part of the Southern Railway. Even on the West of England and Bournemouth main lines, the tenders of the locomotives can carry sufficient water for the longest regular non-stop runs, such as London to Bournemouth (107.9 miles), London to Salisbury (83.8 miles), and Salisbury to Exeter (88 miles).”

CEFR level