from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a signal that involves visual communication
Sorry, no etymologies found.
To save time he decided to use 230 kcs. instead of re-tuning the set, and made a visual signal to the flagdeck telling them to warn the W/T office.
Lützow’s wireless had been destroyed and now, when he wanted to report Beatty’s reappearance, he could not; Scheer in Friedrich der Grosse was ten miles astern, beyond visual signal distance.