semaphore signal (English, noun)
expansion: semaphore signal (plural semaphore signals)
Senses:
glosses: Any signal sent by semaphore.
topics: rail-transport
railways
transport
glosses: A railway signal with a moving arm mounted on a signal post or gantry, the position of the arm indicating whether a train should stop or proceed; they are now largely replaced by colour light signals.
Forms:
form: semaphore signals
tags: plural