Found 2 items, similar to signalman.
English → English (WordNet)
Definition: signalman
signalman
n : a railroad employee in charge of signals and point in a
railroad yard
English → English (gcide)
Definition: Signalman
Signalman
\Sig"nal*man\, n.; pl.
-men.
A man whose business is to manage or display signals;
especially, one employed in setting the signals by which
railroad trains are run or warned.
[1913 Webster]