signal box


noun British.

a railway signal tower.

Origin of signal box

First recorded in 1820–30
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for signal box

signal box


noun

a building containing manually operated signal levers for all the railway lines in its section
a control point for a large area of a railway system, operated electrically and semiautomatically
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012