noun, plural sig·nal·men.
Related formsun·der·sig·nal·man, noun, plural un·der·sig·nal·men.
Examples from the Web for signalman
Note, however, that if the signalman had belonged to another company it would have been quite otherwise.The Law and the Poor|Edward Abbott Parry
He then went to Karazin as signalman and operative in the railway works.Maxim Gorki|Hans Ostwald
“I have not seen them this quarter of an hour, sir,” replied the signalman, protecting his glass from the rain under his jacket.Mr. Midshipman Easy|Captain Frederick Marryat
A signalman sat cross-legged on the ground back of each battery."And they thought we wouldn't fight"|Floyd Gibbons
A signalman promptly switched it on to a siding, and the French attacked it.The Childrens' Story of the War, Volume 3 (of 10)|James Edward Parrott