colour light signal (English, noun)
expansion: colour light signal (plural colour light signals)
Senses:
topics: rail-transport
railways
transport
glosses: An electric railway signal with colour aspects, showing either red or green in a 2-aspect signal, with the addition of a yellow or double yellow aspect (meaning caution) in 3- and 4-aspect signals.
tags: UK
Forms:
form: colour light signals
tags: plural
form: colour-light signal
tags: alternative
form: color light signal
tags: alternative
form: color-light signal
tags: alternative