colour light signal
English edit
Noun edit
colour light signal (plural colour light signals)
- (rail transport, British spelling) 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.
Alternative forms edit
Translations edit
railway signal
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References edit
- “colour light signal”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.