visualsignal
nounUK /ˈvɪʒuəl ˈsɪɡnəl/
US /ˈvɪʒuəl ˈsɪɡnəl/
A visual signal is something you can see that sends a message.
The green light is a visual signal that tells cars to go.
RELATED WORDS
OTHER MEANINGS
2. A picture or shape used to give information.
The arrow on the road is a visual signal for drivers.
3. A movement or look that shows what someone means.
She gave a visual signal with her hand to say hello.
4. A light or color that warns or guides people.
The flashing red light was a visual signal of danger.